CAVEAT: NETFILE did not work for me.  I had to submit my taxes through an installation done on Windows

1. Install PlayOnLinux and then run it (e.g. starting it through the Terminal)

sudo apt-get install playonlinux

2. Click “Tools” > “Manage wine versions”
3. Choose 1.7.27 under “Available Wine versions” and then click the right arrow “>”
4. Go through the steps in the installer and let it finish
5. Back in the PlayOnLinux main screen, click “Install” in the menu, and then click “Install a non-listed program” on the bottom left
6. Choose “Use another version of Wine”, when asked, and then choose 1.7.27
7. Choose “Install a program in a new virtual drive”, when asked
8. Choose “32 bits windows installation”, when asked
9. Find the location of setup.exe for the TurboTax installer (I copied the files off of the disc to a place on my hard drive)
10. Ignore the message “Error in FS_Check” if it appears
11. Let the install complete, but do not launch TurboTax right away
12. Choose “tt2014.exe”, if asked to create a shortcut
13. Back in the PlayOnLinux main screen, select entry for TurboTax and click “Configure” in the menu
14. Make sure the “Wine version” is set to 1.7.27
15. Under “Install components”, install the following in this order (some of these may not be required, but I don’t know which since this is the configuration that worked for me):
    • vcrun2012
    • Microsoft Core Fonts
    • msvc100
    • RegisterFonts
    • vcrun2010
    • dotnet40
    • d3dx9
    • mono28
    • Internet Explorer 8 (click “Restart” in the installer)
    • crypt32
16. Back in the PlayOnLinux main screen, clicking “Run” for TurboTax 2014 should now work!

This is what worked for me, so hopefully this will work for others.

Print Volume

This is the amount volume that the printer is able to print in.  Generally, the measurement is given by the three dimensions of a rectangular prism.  The thing to watch out for here is that just because a printer has a large print volume, it does not mean the printer can reliably print in all of it.  Say the design calls for a thin flat plate.  If the plate is too wide, then the edges of the plate will peel/warp during the print and the flat shape that was intended will be slightly curved.  To visualize what warping is, imagine a flat plate lying on the print bed as it is being printed.  Warping is when the corners of the plate start peeling off the base during a print.  Warping will be explained in a little more detail later on.

Resolution

This describes the accuracy of the nozzle’s positioning.  It is usually measured in microns or inches.  Clearly a smaller value means that the printer will be more accurate in its position.

Layer Thickness

Because the printer works by extruding layers of plastic, thinner layers allow for more fine details.  However, more layers means that the part will take longer to print (all other things being equal).

Print Speed

3D printing is generally a slow process, but a faster print speed could definitely help offset that.

Nozzle Diameter

A small nozzle diameter means that the extruded plastic will be narrow and thus allow for fine details.  It also improves the smoothness of the printed object.

Ease of Removing Parts off the Platform

Because during a print, the base of the part (ideally) should be firmly adhered to the print bed, one must take care when removing the part from the print bed.  In some cases, removing a part requires a little bit of force to pry the part off the print bed.  This application of force may affect the alignment of the print bed relative to the nozzle.  In lower quality printers this can permanently affect the alignment or require frequent re-calibration   Seeing how “rigid” the print bed assembly can help assess how the machine accuracy can be affect during part removal.  For example, if the print bed is mounted on really large support structure, then the affect of misalignment is less of a problem than a machine where the print bed is mounted in a smaller support.

Enclosure

Some printers enclose the part to be printed in a box and some don’t.  The reason an enclosure exists is so that the machine is able to prevent the part being printed from losing too much heat during print.  Loss of heat during a print negatively affects the adhesion of the printed plastic.  Also a larger temperature difference means the part will warp more.  Without an enclosure, heat is able to freely transfer to the ambient.  High quality printers generally have an enclosure.

Variety of Printed Materials

A common material to print with is ABS.  Other materials such as PLA can be printed as well.  The use of the particular material can be quite dependent on the application of the printed part.  The cost of material also differs.  It is worthwhile to determine what material will be printed.  In many cases, ABS should be sufficient.

Warping

This is probably one of the biggest limitations of 3D printing.  Because of the use of heat during print, it is natural for the part to shrink as it cools down.  The problem is that the shrinkage is not uniform.  Some parts of the model shrink more than others and most of the time it is very unpredictable.  While there are some general guidelines that designers can follow to reduce warping, there are definitely some machine features that are good to have to help reduce warping even further.  Because the nature of the way the printer prints is that plastic is extruded layer by layer, the plastic layer at the very bottom is the first to cool down.  Cooling down means shrinkage.  This also means that as the bottom of the model shrinks, the printer is still printing on top of a slightly shrunken part.  Sometimes the shrinkage can be so bad that the part pulls itself off the print bed.  When the part is no longer securely adhered to the print bed, the part may slide around and ruin the entire print.  Warping is the enemy of 3D printing.

Below are some qualities of a machine that help reduce shrinkage:

• Heated print bed – a heated print bed keeps the plastic hot during the print and does not let the base cool down as much as if there were no heated print bed
• Enclosure – described above

There are more ways to reduce warping that the designer can do, but that is outside the scope of this article.

Number of Nozzles

A lot of printers just have the one print nozzle, but there are some with multiple.  This allows printing with multiple colours or in some cases printing with a water soluble support material.  Generally, support material has to be manually removed from the printed part, but if the support material is water soluble, this saves a lot of the manual labor involved in cleaning up the model.

Nozzle Maintenance

Through extended use, the nozzle can become quite dirty, that is black gunk starts building up on the surface of the nozzle.  If one is not careful, this can clog the print nozzle.  It is worthwhile to find out how often the nozzle needs to be replaced.  There are also other factors that may result in the need to replace a nozzle.  This is a recurring cost of maintaining the printer.  Some nozzles are cheaper and more common than others and it is worth it to see how often the nozzle needs to be replaced and how much it will cost each time.  Machines may come with extra nozzles.

Lubrication

Over time, moving parts may have to be lubricated.  Printers should come with a maintenance manual to help instruct the user how to do this.  It is also helpful to know the cost of the lubricant and how often it will be required.

Machine Lifetime Cost

Aside from the cost of the machine, operating a 3D printer can also incur the following costs:

• Shipping
• Insurance
• Brokerage fees
• Tools for removing support material
• Currency conversion
• Sales tax
• Print material (recurring)
• Replacement nozzles (recurring)
• Lubricants for moving parts (recurring)

As it can be seen, the extra costs can be quite significant.

Conclusion

Hopefully this has given a good general overview of some of the considerations in buying a 3D printer.  Different people will value different things in the printer and hopefully this subset of possible considerations for buying a 3D printer helps people make a decision as to what to look for in a printer.

Flying to Mexico City

When we got to Dallas Airport, we had a stopover of few hours, so we decided to have some Texan steak – or at least as Texan as we tried to get without leaving the airport.  We ended up at TGI Fridays.  It was the first steak that I’ve had in a long time, and I definitely could use another one.  The steak even came with “Jack Daniel’s Sauce”, which made it that much better.

After eating, we met up with two others on the team who had flown from San Jose and Toronto.  After a four hour flight to Dallas, and other few hours of stopover there, we had to fly for another two and a half hours to get to Mexico City.

As my friend said, “it’s like China happened”.  The Benito Juárez International Airport was probably the most disorganized airport I’ve ever seen.  It’s as if every single flight landed at the same time.  The lineup to grow through customs took at least forty-five minutes.  During this whole time, everyone was tired and wanted get their sleep.  A lot of the people on the team hadn’t slept the night before (rather than sleep 2 or 3 hours to wake up early for the flight right?).  While in this lineup, we saw a couple of other RoboCup teams landing as well (Skuba, MRL, among others).  After finally getting through customs and a security check, we got a ride to our hostel via transportation that we organized with the hostel prior to our departure.

Hostel Mundo Joven Catedral

The hostel we stayed had very nice staff that really cared about making its guests feel safe there.  It’s a common feeling among travelers to think that Mexico City is definitely not one of the safer places to travel to.  To combat that, the hostel had its own security guards, security cameras, and they even called legitimate taxi’s for its guests.  They even told us which direction to walk when leaving the hostel to avoid going to the shadier parts of town.  Furthermore, it was situated in the historic center of Mexico City, within walking distance of the Metropolitan Cathedral of the Assumption of Mary of Mexico City and the Plaza de la Constitución.  From some of the rooms at the hostel, there was a nice view of the cathedral.

Work Day

We spent the next day working on the robots to make sure none of the mechanical parts had been affected during the flight from Vancouver.  We had packed all the robots in a regular suitcase with packing foam all around it to protect it.  Looking over the mechanical parts, everything was in order.  The main things we had to fix were tightening screws, adjusting the wiring etc.  The software team had very little to do because they’ve written all the code they could, and just needed robots to test with.  The electrical team on the other hand, toiled tirelessly to troubleshoot all the boards and make sure they were all functioning properly.

RoboCup Begins!

We arrived at the competition venue, the World Trade Center at 8 AM to find a slew of other teams patiently waiting to register.  After probably an hour long wait, we all finally moved in and set up our work places.  When we looked at the field the robots would be playing on, we noticed that the organizers hadn’t yet set up the cameras yet (required for the robots to “see” where they’re going).  This meant that no teams could test.  Teams that were ready could only wait until the organizers got those set up.  Because of this delay, the games had to be delayed as well.  This gave us more time to get the robots ready.  For the next little while, we were the first team to arrive and the last team to leave everyday.  The electrical team needed all the time they could get to finish everything.

Because we had already finished most our maintenance work the day before, there wasn’t a whole lot we could do.  The electrical team had to continue working on their stuff to get as many robots ready as possible.  For the next day and a half, we let the electrical team do their work and we’d help them along the way by replacing parts that were broken (encoders and such).  Otherwise, there wasn’t much we could help with.

Food for the next Week

When we got hungry during the competition, we did a little bit of exploration to find food.  Eventually, all the teams wound up at the same shopping mall for food.  There was a supermarket downstairs to buy water and a food court upstairs with a variety of foods.  We went to this mall pretty much everyday for as long as we were at the World Trade Center.  One day we’d try Mexican food, other days we’d try plain-old hamburgers and other days we’d try even Chinese food (at least the white person’s interpretation of it).  It wasn’t really healthy for us, but we figured it was only for a week.

For dinner, most teams ended up ordering pizza from the nearby Domino’s.  We ate it so much that everybody got sick of having pizza.  Sometimes, we’d have dinner with other teams at our hostel restaurant so we could get to know them a little bit better.  After all, the competition is more about mutual learning and robotics advancement rather than about winning.

Let the Games Begin

Because our team wasn’t that ready to begin with, we had to forfeit our first game against the Immortals from Iran.  By the time we got three robots up and running, we played against the RoboJackets from Georgia Tech.  They only fielded five robots out of the total six.  For most of the game, both teams played pretty evenly, despite their two-robot advantage.  All was going well until one of the opponent’s robots chipped the ball that hit the top of one of our robots, bounced off and rolled into the goal.  In that particular situation, the referee had called an “indirect free kick”, meaning the shot, even if it went in the net, would not count.  But unfortunately, that rule was not applicable because it hit off of another robot.  It was an unlucky goal for us, and we definitely could not score a goal to tie up the game.  We ended up losing one-nil.  For the next few days, we kept complaining about that goal.

In our third game, we played against RoboFEI from Brazil.  There were so many good scoring chances in this game from both our teams that made this game so intense.  Even though we were only watching machines play, everybody cheered them on.  We had four robots on the field this game and they all worked like a charm.  The mechanical system, electrical system, and the artificial intelligence worked so well together.  It was a great feeling for everyone on our team – to see our design work.  After almost a year of hard work, this was it.  We saw our robots move, intercept balls, shoot on the goal, etc.  A lot of the robot shortcomings from the North American Open were also dealt with, such as the problem of the break beam sensors not working, and the robot not moving accurately on the field.  When we scored, we cheered so loud that every single person in the room could hear us (there were probably about 1000 people in that room).  We all got an immense feeling of satisfaction in seeing our working robots score their first goal.  A few minutes later, the other team scored a goal.  It didn’t matter to us, we were still high in the clouds in terms of our mood.  The game ended 1-1.  Despite the tie game, everyone on the team was so happy in seeing our robots work, it didn’t matter what the result was.

This was a great morale boost for the team because for our forth and last game, we played against BRocks from Turkey.  This time, we had our full fleet of robots.  We played our first six on six game.  Yet again, we saw our robots work.  Nothing broke down during the game and everything just worked.  It was quite rare for us to just put our robots on the field and have nothing go wrong.  At one point, our robot shot the ball into the opposing robot and a piece fell off of it.  We knew our design worked when stuff like this happens.  This game was less intense for us than our previous game, but we did end up winning.  That put our record at 1 win, 1 tie, and 2 losses – a total of 4 points.  Unfortunately, this wasn’t enough for us to advance to the next round of the competition and as a result we finished 13th out of 20 teams in the league.  Not so bad for having zero working robots when we got to Mexico.

After the official games, we played a couple friendly games with other teams.  The first game we played was against the Mannheim Tigers.  The game was going well, until we found problems where some of the screws on the robot weren’t tightened sufficiently.  As a result, things well off the robot when we played.  It was quite embarrassing to see.  At least it was only  something minor like putting in a screw, and not something major like a design problem.  In our second friendly game, this time against ER-Force from Erlangen, we found some electrical parts frying randomly on the board, which wasn’t good either.  Out of six working robots, we now had three – still a net gain I guess.

After we were done playing, we watched the other teams play for first place.  From watching their games, it was clear that they played on a way higher level than we did.  Everything that their robots did were way better than ours.  Shooting was faster, chipping went further, robots moved faster, kicks were more accurate, etc.  Everything about their robots was just better.  There is definitely a lot we could learn from these teams.  The final winner of this year’s competition ended up being Skuba from Thailand, who beat ZJUNLict from China.  Both teams analyzed each others strategies for days, but only one team could come out on top.  And now for the fourth year in a row, Skuba remains the undefeated winner of the competition.

Other Leagues in RoboCup

During our idle time, we walked around the other rooms to see how the other teams were working.  RoboCup has many different competitions under its name, while our Small Size League competition is only one small part of it.  Leagues range from soccer robots, rescue, simulation, to even home care robotics.  In the home care robotics league, the competition involved a robotic navigating through a mock house to perform certain chores such as picking up objects to hand to people, speaking and hearing instructions, etc.  It was an admittedly difficult task to do for these robots, but many teams were quite successful at it.

Accidents Happen

Just like in the North American Open, there was yet again another accident involving batteries.  Except this time, nobody noticed and the whole battery lit up in flames.  Somebody just yelled “fire, fire!” and started trying to pat it down with something.  Knowing that I was too far away to do anything, I just took out my camera and snapped a picture of the whole thing.  Eventually, someone just poured lots of water over it to put our the fire.  In retrospect, that might not have been a good idea since water in an electrical fire is not really a good thing.  Nobody got hurt though, which is good.  Afterward, the organizers didn’t let us charge batteries nearby our work space anymore.

Some Design Shortcomings

Knowing that our ball kicker would be able to withstand impacts of the ball, what we had forgotten to analyze was how well the kicker would hold up if it hit a object fixed to the ground.  We found out the hard way at the competition after a few games when we discovered that our robot kicker head was bent out of shape.  We also had a lot of turf buildup inside the robot that was enough to slow down the wheel during the game.  This turf had to be cleaned out after every match.

For the kicking mechanism, the robot uses a solenoid/plunger mechanism.  Activating the coil would cause the plunger inside the core to move quickly to hit the ball.  A rubber band secured to the end of it would allow the plunger to return to its initial position.  The problem with this setup was that the rubber band would easily break and had to be replaced after every game.  When we took out the rubber band, we could always see cut marks along it.  In another instance, a chipper solenoid on a robot almost popped out.  It’s not really clear why this happened at all, but it could have been a screw that was not very tight to begin with.

RoboCup Closing

To close the competition, there was a soccer game where humans played against the middle size league robots.  It was pretty funny to see the robots struggle to take the ball away from people who could handle the ball way better.  At the same time, the humans were really scared of the robots since if a human ever got hit by the kicker head from the robot, it would break bones.  The robot goalie however, proved quite competent in blocking shots – better than the human goal from what I saw.  Or maybe the human goalie wasn’t trying very hard.  I’m not sure who won the game since I didn’t watch the whole thing, but it was still really interesting to see.

Afterward, all the teams packed up their things and waited for the closing banquet.  At the closing banquet, they served a standard meal for everyone.  It was a really good chance for teams to celebrate their achievements and finally relax a little bit after the competition.  Everyone deserved a rest after all of that.

First Real Tour of Mexico – Teotihuacan

After the competitions ended, most teams stayed an extra day or two to see the sights in Mexico City.  The organizers of the Small Size League were nice enough to organize a tour for everyone the day after the competition ended.  Most of the SSL teams went with us to the Aztec pyramids in Teotihuacan.  The tour first showed us how their predecessors used different plants and minerals to make tools such as knives and sewing thread.  That part was interesting at first, but I think what a lot of us really wanted to see were the pyramids.  Afterward, the tour guide led us to the gift shop.  For some reason, most of the people were so interested there, it took about an hour for everyone to finish so that we could move on with the tour.  After the gift shop, we finally made it to the pyramids.

After walking up and down the pyramids, we had lunch and went back to Mexico City to see the Basilica of Our Lady of Guadalupe.  This was one of the most visited Catholic shrines in the world.  But because I had already visited so many churchs and cathedrals from my tour around Europe, this part of the tour was less interesting for me.

Historic City Center

The team would fly back to Vancouver on the day after visiting the pyramids.  But before leaving, we made sure to visit the Metropolitan Cathedral of the Assumption of Mary of Mexico City and the Plaza de la Constitución.  In the plaza, hung a giant flag of Mexico.  This is where the city center used to be, at least during the 19th century.

Going Home

After 10 days in Mexico, we all longed to go home.  It had been a long week – full of stress, adrenaline pumping excitement and overall a good experience.  But after all that, we were ready to go.  We flew out in the afternoon from Mexico City.  Apparently, at around the same time that we were at the airport in Mexico City, three cops had been shot to death.  While we were there though, we didn’t hear anything of it.  We safely arrived in Dallas for a brief stopover and arrived back in Vancouver at about 8:30 PM, just in time to go home, wash up and go to bed.

More photos here

Beginning of the Competition

On the first day of the competition, there was a work day for all the teams to use to get their robots ready again after a long flight to Canada.  As the current mechanical team lead for the Thunderbots, I too had to get our own robots ready to play.  The mechanical systems had already been completed some weeks ago, but unfortunately, even now, the electrical board testing and firmware coding still had not been completed yet and some parts that we needed were still not in.  For the next day and a half, the team was scrambling to get everything finished in preparation for the first game on Sunday.  Because, the only critical tasks remaining were the electrical testing and coding, only the electrical team had the know-how to tackle those tasks.  The mechanical and software teams could only wait for results.  As the electrical team worked, everybody else on the team became more and more stressed.  We all kept wondering whether the team would have working robots for the first game.  We were all helpless in this situation.  The electrical team worked throughout the day and night trying to finish.  Some of the other team members stayed in anticipation while others went home to rest hoping for results in the morning.

Throughout this work day, the Chinese team continued testing their robots on the field.  They seemed like the most ready team.  The German team however, had lots of work to do as well.  Their flight to London from Germany was delayed and as a result, they missed their flight from London to Vancouver.  They arrived in Vancouver on Saturday night.  They  had even less time than we did to get their robots working.  When each team set up their work space, they each made sure to put up their mascots.  For the Chinese team, they had a panda plush of about 1.5 ft tall and the Germans had a full size German flag.

Game Days

On the game day, I woke at up 5:30 AM and arrived bright and early on campus at 8 AM.  When I arrived, the electrical team was still at it and seemingly not even close to finishing.  This led to a change in the team’s strategy to the competition.  We would try to repair the electrical boards from last year’s robots.  These old boards had a different size than the new ones and had different mounting holes, but luckily, somebody on the team had the great idea of including mounting holes for these old boards for this year’s robots.  Otherwise, we would have had a really hard time hacking that together.  Given only the few hours we had to hack this set up together, the mech team and I worked as fast as we could to finish.  We each probably ran up and down the stairs at the UBC Engineering Design Center about 20 times that day looking for tools and delivering robots.

The first game was supposed to be at 9:30 AM, but my team certainly was not ready.  It seemed like the other teams weren’t completely ready either, so the game was postponed until the afternoon.  The Thunderbots was supposed to play the first game, but due to our lack of readiness, China and Germany played each other instead.  When it became our turn we play, we managed to get three robots out of six on the field.  None of these robots had a working break beam sensor (the sensor on the robot that is designed to detect ball possession).  Without break beams, the robots did not know they could kick the ball, since it would never know if it had ball possession.  The robots did not have a controller that worked well either (the controller determines how much voltage to apply to each of the motors such that the robot can move smoothly from A to B).  A controller that didn’t work well meant the robots drove about on the field seemingly confused.  “Derp” is probably the best word to describe it.  Despite the shortcomings of these three robots, they played their best against ZJUNLIct from China and the Thunderbots were defeated 10-0.

On the following few days, the mech team tried to help the electrical team the best they could with tasks such as building extra connectors.  We also tried to get the old break beam sensors working again.  It was something that had to be on the robot if it were to ever kick the ball properly.  After toiling for a few hours, we managed to get two out of three of them working.  We probably could have gotten more if we knew more about the electrical design.  There was little to go on in terms of the wiring schematic and spare parts.  It was also hard to troubleshoot since ambient lighting largely affected the sensor.  If it worked upstairs in our work space, it wouldn’t work downstairs on the playing field.  It took us a while to figure that out.

In our second game, we played against ER-Force from Deutschland.  For this game, we still only had three robots, but this time they were a little bit better equipped.  Even then, the robots still had trouble kicking because the lights being used on the field emitted too much infrared light, which obstructed the break beam sensors.  It was very frustrating to see the robots not knowing when to kick even though they were handling the ball perfectly. But somehow, we still managed to score a goal.  In the end we lost the game 6 to 1.

In the final game between China’s ZJUNLict and Germany’s ER-Force, the Chinese team was victorious.  Both teams had a full fleet of robots to play six on six.  A modest crowd of spectators also watched the whole game being played and in general people were quite impressed at this engineering feat.

Team Social

To allow the teams to better know one another, there was a social event planned by the organizers of the North American Open.  There, I met a lot of the members of the German and Chinese teams.  It was nice that that I could talk to each team in their native languages.  Although my German wasn’t that good to keep up a conversation for a long time, it was enough to get the Germans wondering how I knew it at all.  The last thing they’d expect is for a Chinese guy to start speaking German to them.  My Mandarin was at a level that I could talk to people in it, but there were still some occasions where I didn’t understand what they said.  It was probably because of me not having a lot of practice with Mandarin (I speak Cantonese normally) and them having an accent from their region that I didn’t recognize.

Press Conference

The organizers made sure to invite as much of the press as they could.  More publicity meant that the team could potentially get more money in sponsorship.  More money means better robots.  The administrative members of the team were in the spotlight and talked to most of the people from the press, while the technical members of the team continued to do their work.  The team leads from mech, software and electrical also had a brief interview with the 24 Hours Vancouver newspaper.  The team was also featured in the Ubbyssey here and on MacLean’s magazine here.

The Chinese team also put on a show for the press by putting all 12 of their robots on the field so they could they play against themselves six on six.  The performance went quite smoothly as there were not random break downs and the press were very impressed.

Engineering Failures

As with these student projects, an accident was bound to happen.  This one was with a battery.  There was have been a defective battery that the Chinese team unknowingly brought and when they charged it, the battery started puffing up – not a good sign for a battery.  One of our team members was quick to notice and instantly dunked it in soap water and disposed of it.

For our team, we had problems where the solenoid kicker would get stuck after being used repetitively.  Heat from the power dissipation in the solenoid windings would heat up the whole assembly and cause the solenoid housing to permanently deform.  The solenoid was produced out of stacked layers of poly-carbonate sheets.  This stacking of layers allowed each layer to deform individually.  To fix this problem, we printed out new housings made of ABS plastic.  By having one solid solenoid housing, it was more difficult for it to deform.

The German team had some problems with the turf getting dug out of the carpet and getting everywhere inside the problem and also with their robot shells not staying on properly.  The turf inside the robot meant that gears could get stuck intermittently and could also get in the way of other mechanical components.  Their solution solution for now was to clean it all out every game.  During games, the shells of the robot would pop out randomly whenever there was an intense impact with a ball or another robot.

Getting Ready for Mexico

On the Friday before all three teams left for Mexico City, everybody had to pack up all of their things.  The German and Chinese teams could pack everything easily since they had packed everything once before when they had to fly to Vancouver.  For us, our tools were scattered all over the place.  It took us about 4 hours to find all tools to pack into the the luggage containers.  The approach to packing was that we would pack any tool that was ours and was already lying out on the table.  This is because if we took it out of the tool closet, it meant that the team used it for something.  Naturally all of the hex keys, screw drivers and the like were packed.  All spare parts were packed.  Every tool that we had sitting around was packed.  Even electrical equipment like a power supply and an oscilloscope was packed.  We had everything we needed for RoboCup 2012 in Mexico City.  Even though not everything was done in time for this competition, everybody was confident that things would be better in the competition in Mexico.

More photos here

After about three years or more of laptop use, one of the components that is likely to break is something in the LCD assembly.  The LCD assembly is a collection of components that allows the laptop to display things on the screen.  The following is a list of the primary components and their purpose:

• LCD Panel – the part of the assembly that displays the images and is what people are looking at when using the laptop
• CCFL Tube/Lamp – provides the light on the display.  The LCD panel provides the image, and the lamp provides the light required to see the image.
• LCD Inverter – transfers power to the CCFL lamp

The following instructions are general and do not pertain to one specific model of laptops.  The theory still applies however.

Problem Symptoms

In problems regarding a laptop display, these are the common problems among others that are quite prevalent among laptop users.

• Black corner – on one corner of the screen, a black triangle can be seen. The mouse can be moved under it, which shows that the LCD is just not displaying that part of the screen. The black corner is also hot to the touch. In some cases, the black triangle can change size over time (on the order of a few minutes or hours).

• Dim screen – the LCD is still displaying a picture, but it cannot be seen because there is no backlight.  Shining a bright light (such as a desk lamp) illuminates the screen slightly, but not to the brightness that the screen was at before.

The first problem tends to lead to the second one.  The CCFL tube burns out and leaves a dim display.

Determining the Cause

In general, if one experiences at least one of the problems above, there is a clear hardware issue.  Some exceptions are when one has turned the brightness all the way down, but this usually isn’t the case for people.

If one simply sees a dim display, it is due to either the CCFL tube or the Inverter.  It is not possible to to determine which part is the culprit without opening up the laptop.  Refer to instructions specific to the laptop in question to open up the screen assembly.  During disassembly, take note of what screws go where.  Different sized screws get used for different places and it is very easy to forget which ones go where.

The first image shows the laptop with the cover taken off.  The second image shows the disassembled LCD assembly with the CCFL tube lying on top.

CCFL Tube

Finding the CCFL Tube on the laptop is a lot more involved than finding the Inverter.  It involves opening the LCD panel (see this website for instructions for a Dell Inspiron 1520).  Visual inspection of this part can sometimes show clear signs of damage.  Burn marks should be apparent.

If burn marks are not apparent, then the cause is likely due to the Inverter.  One can also test the CCFL Tube, by turning on the computer with everything still plugged in (but disassembled).  If the CCFL Tube lights up, then there is nothing wrong with the CCFL Tube.

LCD Inverter

It isn’t possible to test this part directly without the proper tools.  However, if one has a dim display but has checked whether the CCFL works, one can be more certain that the Inverter is the culprit by process of elimination.

The Inverter is the part in orange in the top photo.  The bottom picture shows the Inverter by itself.

Solution

Once the cause has been determined, the next step is to replace the part.  However, one has a choice:

• Replace the entire LCD assembly – costs more (~$100), but the labour is easier
• Replace the problematic parts individually – costs less (~$5 – $20), but more difficult labour

One source for parts is Ebay, but it might take around three weeks for the part to arrive.  This is cheaper than the $300 that Dell charges for shipping the laptop, buying the components and the labour.  Replacing these parts is an involved process will take at least one hour.

Here are some things to watch out for when replacing the CCFL Tube:

• It is difficult to take the part out of the LCD panel
• Watch out for dust that could get in between the layers in the LCD (will show up as black specs under the screen
• It is hard to lay out the layers flat again when the CCFL Tube is replaced so there might be some uneven lighting after the CCFL Tube is replaced

After replacing the parts, turn on the computer again and the screen should be bright again.

Flight to Barcelona

I woke up at around 3:30am to get ready for the flight to Barcelona.  I had slept at around 10:30pm the night before in order to not feel absolutely terrible in the morning.  We took the first train out to the airport at 4:40am and got there about an hour before our departure at 6:45am.  While going through security, I forgot to take of my belt and because of that, the security personnel checked me with the metal detector wand all over the place.  For some reason, he seemed to also have a huge suspicion that I was hiding something in my pants.  Once he let me go, we were on our way.  On the plane ride there, I tried by my best to take a nap, but this little kid cried for the whole duration.

Sagrada Familia

After dropping off our stuff at the hostel, w went to the Sagrada Familia, an unfinished church that began construction in 1882.  When I saw it, I thought it was really weird that the construction crew used modern cranes to build architecture of the old style.  We tried to go inside, but there was a huge line up.

After wandering around town a little bit, we came across this market that sold all sorts of things.  Apart from pretty normal items like clothing, vendors there sold N64’s, used power tools and even military regalia.  A lot of that stuff was probably stolen.  We walked around some more and then headed down to the beach.

Barceloneta

The area we were in, the Barceloneta, was a stretch of beach coastline looking into the Mediterranean Sea.  It had the nicest beach water and sand – even better than what I saw in Volos.  Looking around the beach, I learned that it was legal for women to sunbathe topless. It was actually quite prominent.  The weather was really hot too – perfect beach weather I suppose. 

I lay down under an umbrella on a beach towel while the others went for a swim.  I ended up falling asleep.  I suppose that made up for not having a good sleep on the plane.  After spending about an hour and a half at the beach, we went on a walking tour.

The Walking Tour

The first destination in the tour was in the Gothic Quarter.  We reached the memorial for Eulalia of Barcelona, a 13 year old girl that was brutally subjected to torture from the Romans for refusing to give up Christianity.  She died from the 13th and final torture that involved her being put inside a barrel with blades shoved inside it and then having that barrel rolled down in incline.  It is said that a dove flew out of her dead body as she ascended to Heaven.

The next destination was the oldest synagogue in Europe (as opposed to the one in Prague, which is the oldest active synagogue).  From the outside, it doesn’t look anything like a synagogue.  It just blends in perfectly with the buildings around it and the building itself doesn’t have any valuable looking ornaments or decorations either.  The only things that separate it from the other buildings is sign in Hebrew on the doorway and some signs for tourists to know that it’s there.  In this Jewish district, the tour guide mentioned the expulsion of Jews during the Spanish Inquisition.  I thought it was kind of amusing when I was caught by surprise at the mention of it – kind of like that quote from Monty Python.

Afterward, we went to Plaza de Sant Felip Neri.  The significance of this place was that the plaza was the site of a air attack from Italian bombers during the Spanish Civil War.  Shrapnel damage from the bombs still scar the walls of the plaza.  On another side of the plaza, the bomb damaged was repaired but one can still see the slight difference in colour between the bricks which shows how much of the wall had been destroyed.

One thing about the streets in the Gothic Quarter of Barcelona is that a lot of them are really narrow – probably only about 10 feet wide.  We walked through these streets for most of the tour.  In one of those streets, we came across a mosaic of Space Invaders.  Apparently, there is an artist who goes all over the world putting them up.

The next destination was the Placa Nova, which used to be the location of the city gates back when the Romans lived in Barcelona.  The remnants of the gate and the aqueduct still exists.  Across from the gate is the City Architecture School, which has a joke drawing by Picasso splattered over it.

After walking some more we saw the Barcelona Cathedral which housed the tomb of Eulalia of Barcelona and also the Placa del Rei, the historical location where Christopher Columbus reported his discovery of the Americas to the Spanish royalty.  We also saw some Roman ruins after climbing a mountain with a height of 16.9 meters (that’s what a plaque actually said) as well as the Placa de San Jaume, the political center of Cataluña (the area of Spain that Barcelona belongs to).

The tour guide also talked about the origins of the flag of Catalonia (Cataluña is the name in Catalan).  It is said that a great warrior Wilfred the Hairy, after being wounded in battle, drew stripes along a copper shield with his blood-stained fingers, hence the four prominent red stripes on the Catalan flag.

We also walked along La Rambla, a popular tourist street in the city.  The tour guide also showed us a city square that featured some of buildings designed by an architect named Gaudi.  Apparently, his designs are all over the city.

Next was the Placa George Orwell.  As a memorial to him (he was involved during the Spanish Civil War), the city named a city square after him.  Ironically enough, this plaza used to be under 24 hour surveillance kind of like Big Brother in his book “1984”.

We finished the tour at a bar and socialized with other people in the tour group for a little bit and drank Sangria.  I got to talk to these people who used to work at the same hostel we stayed at in Hamburg.  It was such a coincidence.

Barcelona’s Skateboarding Fame

After that, we walked around the city to look for the skateboarding spots that Barcelona was so famous for among skateboarders.  I’m not a fan, so I could not recognize the place from skateboarding videos, but it was cool to see a lot of skateboarders in one place showing off their tricks.

Tapas

For dinner, we tried Tapas, a Spanish delicacy.  Tapas are basically a small appetizer dish, but patrons generally order a few of them for a full meal.  Along with Tapas, Paellas are another Spanish delicacy that’s also really delicious.

Sangria is Evil

That night, we spent a little bit of time at the hostel bar.  We all drank Sangria and the thing about that drink is that it tastes a lot like juice, which means it is really easy to drink too much.  And that’s what I did.  I puked a bunch and got a pretty bad hangover the next morning.  I never intended to drink that much in the first place.

While we were drinking, we talked with this black dude and he always had racist jokes to say.  He went on about how white people could never get away with saying racist comments, which was so true. 

Park Güell

I spent the next morning puking too which sucked a lot.  We went to the beach again that morning, but I felt so bad at that time that I decided to go back to the hostel to rest up a bit before doing anything.  I felt a lot better in the evening and so we all continued sightseeing and went to Park Güell.

Park Güell was basically a park that featured a lot of Gaudi’s architectural exploits.  Since he hated the use of right angles in his work, much of the design had curvy edges.  Spanish architecture here was so different from the architecture I’d seen everywhere else.  It was really distinct and unique.

A Less Intense Night (at Least for Me)

After visiting the park, we went to the hostel bar like the night before.  Except this time, I didn’t do any crazy drinking.  We met the same black dude from the night before again and this time he went on about how much he loved eating fried chicken, which just made me crack up so hard.  He perpetuated that stereotype.  Once the hostel bar quieted down, my friends went out for clubbing while I stayed at the hostel and went to sleep.

Mini-Sandwiches

I found out later that they returned at around 6 am.  Two of them were really high on weed apparently when they came back too (weed is legal in Barcelona so long as one possesses less than 50g).  They missed the hostel breakfast that morning and slept in until 12pm.  Once we all got ready, we went out for lunch at a mini-sandwich restaurant. 

The place had so many varieties of mini sandwiches and they all looked and tasted delicious.  I wanted to try all of them, but I was pretty certain that I couldn’t eat that much since I wasn’t hungry for lunch yet.

Montjuïc

After eating, we went up to Montjuïc.  The mountain had a lot of really nice architecture, just like a lot of places in the city.  Also on the mountain was the site of the 1992 Summer Olympics in Barcelona.  We walked around the Olympic stadium and got a really good view of the city.

We walked further up the mountain and reached the fortress at the top.  At the time, we didn’t know there was a gondola that took us up there, so we walked the whole way, which was super tiring in the intense heat that day.  Fortunately, seeing the fortress was worth it.  From there, we got a really good view of the entire city, all the way around. 

After walking around so much, we all got really hungry and took the gondola back down and looked for a place to eat.

Paellas

After trying Tapas on the first day, we decided to try Paellas this time around.  Paellas are basically a rice dish and consists of either vegetables, seafood, or different varieties of meat depending on the type.  We ordered one with seafood and chicken in it. 

Being able to pick meat off bones and peeling the shell off of shrimp was so satisfying.  It was totally unlike the German dishes that involve none of that peeling whatsoever.

Writing at the Beach

We spent the rest of the night at the beach to get one last look at it before leaving the next morning.  When we got there, the sun was already setting so it was quite comfortable at the beach without the sun constantly cooking us. 

As the sun set, it actually got really cold.  While sitting at the beach, I started writing bits of this blog entry in my notebook.  Writing on the beach was really satisfying.

My Joint-Rolling Experience

When we got back to the hostel, two of the people I went with wanted to use up the rest of the weed that they bought.  I refused to do any weed when they offered it to me – even if it was legal here, but I did want to try rolling a joint.  They passed me some of the weed and rolling paper and then taught me how to do it.  In the end, I rolled a better joint than both of them and it was only my first try too.  They called me a “stoner prodigy” and said how I’d be a really good stoner if I ever did weed.  No way I’m going to smoke it for real though even if rolling a joint was an interesting experience.  When the others started smoking the rest of the weed, I returned to the hostel and went to bed.

Flying Back

The next morning we all woke up at 6 am to get to the airport for our flight back to Stuttgart.  For pretty much the entire trip home, our whole group barely talked.  We all had this zombie look on our faces from waking up way too early and not sleeping enough.  It took a few hours for us to return back to our normal state.  We all felt it was a good trip – except for the part where I had too much Sangria.

More photos here

Here is my next travel blog entry about my visit to Berlin. In a short three days, we managed hit up quite a few places in the city, especially the historical areas about the Cold War and the Second World War. I would have liked to have posted this sooner, but my computer refused to cooperate.

Massive Train Delay

I was always under the impression that the Deutsche Bahn was always on time, but I guess that’s not true anymore. The City Night Line was supposed to leave at 12 AM from Mannheim and arrive in Berlin at around 7:30, but due to a train crash causing a chemical spill in Switzerland, our train took a detour. It arrived three and a half hours late. At first it was supposed to only be a 170 minute delay, but as time went on, the delay went longer and longer. To pass the time, we walked around Mannheim late at night, and pretty much saw the entire city, AKA the schloss, in about an hour. We spent the rest of the time just moping around the station. It was cold at night too and I never expected to be waiting so long so I ended up freezing when I was outside. I tried sleeping on the benches, but that didn’t really work for me, and instead ended up sitting there eating snacks until the train came. Maybe we should have chilled at a bar instead. Because of the long wait for the train, I didn’t sleep too well. It also didn’t help that I forgot to reserve a spot that had a bed, and I instead reserved a reclining seat instead. Because of the late train, the conductors handed out a giant form in pure German for people to fill out to get part of their money back.

Berlin Hauptbahnhof

We arrived in Berlin at about 10:30 in the morning, 3 hours later than scheduled. We all got off the train, still super tired, and started our journey in Berlin. The Berlin main station was the biggest station I’d seen so far. It had a really modern look using glass everywhere they could. Its sheer size allowed for a lot of businesses to open inside the station. The station had three floors with two floors used as train platforms. Coincidentally, it was also the station’s fifth birthday. When we got outside, we could see the German Reichstag within a walkable distance.

German Reichstag

Seeing that we could already see the Reichstag when we walked out of the Hauptbahnhof, we proceeded there first. Since I played so many World War II games, I already knew what the Reichstag looked like. Over the years, the Reichstag underwent a few renovations such as the glass dome that was added after the war. The rest of the building looked so similar to what I had seen in video games and historical photos that as I walked up the stairs, it briefly reminded of me of the guy with the flamethrower in the cut-scene in Call of Duty 5. I also remembered some of the iconic photographs I’d seen such as the soldier waving the flag of the Soviet Union on the roof.

Prior to going to Berlin, I had reserved spots for the roof terrace and the dome (according to their website, people couldn’t go up there without a reservation). Before going in, I had to put my stuff through their X-Ray machine (maybe they’re afraid of terrorists or something). They had confiscated my Swiss Army Knife for the duration that I was up there. At the roof terrace, the staff issued audio guides to every guest. While walking to different areas of the dome, the audio guide would automatically begin talking about parts of the city that one could see from that part of the dome. I didn’t really pay attention to the boring voice of the audio guide and the information that it had wasn’t all that interesting (it really didn’t matter to me if I knew how many rooms were in a particular building or the land area it took up).

Brandenburg Gate

From the top of the Reichstag, we could see the one of the symbols of Germany, the Brandenburg Gate. It is located at one end of the street Unter den Linden, and was used as a sign of peace during the Prussian Empire. Since it is also one of the most famous landmarks in Europe, there were naturally a lot of tourists here. So much so that there were people dressed up in weird costumes to earn money from people taking pictures with them. There were a few people holding American and USSR flags and even people dressed up as Star Wars characters. Near the gate were also a embassies of various countries such as France and the United States. One of the buildings even proudly waved the flag of Quebec (I don’t know why and it wasn’t the Canadian embassy either).

Eastener Hostel

By now, we were already super tired from the lack of sleep and from carrying our bags around all day. We took the city train to our hostel for a quick rest and to drop off some of our stuff. The man at the hostel was super thorough in explaining the rules of the hostel (with his East German accent) and even took the time to give us a map and point of the major tourist destinations on it. Using this map, we were able to find all the places we wanted to go to. By the end of the trip, the map had tears in several places and random folds here and there, clearly showing how intensely I used it.

Ampelmann

While walking around the city, I noticed that the pedestrian traffic light signals had a different design than the rest of Germany. Apparently, the traffic light man used in some places in Berlin were based off of the design used in former East Germany. I thought this Ampelmann guy was pretty cool.

The Remains of the Berlin Wall near Nordbahnhof

One of the locations that the map pointed us to were to some of the remnants of the Berlin Wall. Before coming to Berlin, I had a thought of posing at the wall with a hammer, but I never got one and I don’t think the people would have been very happy with me doing that. The segments of the wall here showed a lot of graffiti along its entire length. The city also preserved the guard tower and showed some of the methods of preventing escapes. Also in the area was a memorial for those who died while trying to flee to West Germany.

East German Cars

One of the peculiar things about Berlin was the fact that tourists can still take rides in cars (known as a Trabant or Trabi for short) that the GDR once used. I looked inside one of them and it just seemed so old and run down. I figure the only reason that these cars are still around are because of their historical/moneymaking value.

Really Cool Old-Style German Font

When I walked through some of the old train stations, I came across a really cool looking vintage font that I felt was so characteristic of Germany. Maybe I watched too many documentaries or something.

Checkpoint Charlie

Taking the train from Nordbahnhof, we made our way to Checkpoint Charlie, one of the border crossings once used before the unification of East and West Germany. The old border crossing booth and the sign telling people they’re leaving the American Sector still remains today. Standing outside are also two people holding American flags. Near the border booth, there is a giant sign with an American soldier on it and on the reverse side, there is a Soviet soldier. On the street, street vendors sold random things like fur hats with the logo of the Soviet Union on it, gas masks, and flags of the GDR and USSR.

Haus am Checkpoint Charlie

Adjacent to the border crossing, there was a museum dedicated to the documenting the border security between East and West Germany. The museum documented various methods of escape such as hiding people inside the hood of a car and using a hot air balloon. Also displayed were tools that people used to escape like special wall climbing footwear and stories of escapes. Seeing all these different methods made me realize how smart these people were. I would have never thought of something like that. Sadly, I was already super tired while walking through this museum and I was ready to just go back to the hostel and sleep. It was still light out at the time. Unfortunately, we weren’t allowed to take photographs in this museum.

DFB Cup Final

While in Berlin, we saw a lot of people walking around wearing stuff from football teams and apparently the DFB Cup Final was to be played in the Berlin Olympic Stadium. To catch the football game, we went to a bar to tune in. While at this bar, I got to try Berlin-style wheat beer. Theirs was different than the wheat beer I usually drink because here, they had beer cocktails. I tried the red and green Berliner wheat beer. The red one had a raspberry flavour while the green one had a woodruff flavour.

The Fernsehturm

The Fernsehturm is the TV tower where people can go up to see a view of the city. It is also one of the tallest buildings in the European Union. We didn’t go here since we didn’t really care so much about the view and we went to see other landmarks instead.

Potsdamer Platz at Night

According to my boss at work, Potsdamer Platz was a must see at night, and after seeing it for myself, I totally agree with him. The beauty of this place was the architecture that looked so beautiful in the night, especially the Sony Center. The roof of the Sony Center was shaped like an umbrella and its color would gradually change between blue and purple.

Französische Straße

Located on this street were the Französischer Dom, Berlin Concert House, and Deutscher Dom. Each of these three buildings have quite a bit of history and are all have amazing architecture. This place is definitely the place to be to see old-style architecture in Berlin.

Fassbender & Rausch Chocolatiers

This chocolatier is quite well known and their store is frequently visited by tourists. What makes it so special is that they built many of the landmarks in Berlin out of chocolate. Anything made of chocolate is cool. The longer I stayed in this store, the bigger craving for chocolate I had.

Führerbunker

During the Battle of Berlin, Hitler stayed in his bunker beneath his New Reich Chancellery. I went to the location of where the bunker once was only to find the area replaced by pretty regular things like shops and apartments. The side of the street here had plaques explaining the history of this area and its use for Hitler’s Bunker.

Memorial to the Murdered Jews of Europe

Near Hitler’s Bunker was a memorial for the Jewish victims of the holocaust. The memorial had thousands of concrete blocks, or stelae, of varying heights arranged in a grid pattern. According to one of the designers of the memorial, Peter Eisenman, he stated that “the stelae are designed to produce an uneasy, confusing atmosphere, and the whole sculpture aims to represent a supposedly ordered system that has lost touch with human reason.” Walking through the memorial reminded me so much of Bomberman. The memorial had the grid pattern just like in the game. It would probably also be really fun jumping from one block to the next, but it would have been really disrespectful.

Potsdamer Platz during the Day

To take a break and relax during the day, we went back to Potsdamer Platz for a beer. Now I understand why my boss told me to come here at night instead of during the day. It doesn’t look as nice at this hour.

Victory Column

Similar to the Arc de Triomphe on Avenue des Champs-Élysées in Paris, the Victory column stands in the end of the street Unter den Linden and is similarly surrounded by a giant roundabout. The column serves to commemorate the Prussian victories in the Danish-Prussian War, Austro-Prussian War, and the Franco-Prussian War. Surrounding the column are other smaller statues. One of the statues, I thought I saw my last name on it, but looking more closely, I realized it said “Roon” instead of “Poon”. What a bummer.

Schloss Bellevue

Located in the Tiergarten District of Berlin is the official residence of the President of Germany. We sat on the grass outside the residence to take a rest and to admire the beauty of the schloss and to watch the bike race that was happening just on the adjacent road.

Soviet War Memorial

Built using stone from the Reich Chancellery not long after the end of the Second World War, this memorial remembers the war dead of the Soviet Union, particularly the 80 000 soldiers who died in the Battle of Berlin. The memorial is of a statue of a Soviet soldier and on its left and right sides are two 152 mm Howitzer artillery pieces and two T-34 tanks (for some reason, birds like to go inside the barrel of the tank’s main gun). When I looked at the artillery piece, I tried to open the chamber for where the rounds go and tried to change the angle of the gun, but none of that worked. I’m pretty sure they didn’t want people messing with it. Behind the building is a small museum documenting the memorial’s construction and the Battle of Berlin. The memorial used to be guarded by Soviet troops during the Cold War even though it was in the British zone of occupation and now it is managed by the city.

Hackesche Höfe

One of my friends suggested that we go here since this place is known for its beautiful courtyards. It had eight interconnected courtyards, each with its own unique design. Some of the courtyards had tables for people to relax with coffee or beer while others had gardens.

Berliner Dom

Located on Museum Island, the Berliner Dom is a cathedral that belongs to the Evangelical Church. What was weird was that when we arrived there, we saw a group of people there having a cosplay party. There was one guy waving around a flag of the Empire of Japan. I never knew Anime was that big in Germany. Even weirder is that some of these kids were frolicking in the fountain in front of the Dom.

Museum Island

Another well known landmark in Berlin is Museum Island, which is an area with five internationally well known museums. They are the Altes Museum, Neues Museum, Alte Nationalgalerie, Bode Museum, and Pergamon Museum. We didn’t go in any of these museums since none of us were that interested in what the museums had to offer. The Alte Nationalgalerie had a look that seemed to have been inspired by the Greek Parthenon (but I’m not sure). While we were there, the sky started raining for about 15 minutes. It was quite refreshing since it was really hot earlier in the day.

Food

Although we didn’t try any food that were unique to Berlin (such as currywurst), we did splurge for one of our meals, and I found the food we had to be really delicious. Since Berlin is a lot closer to the coast than Stuttgart, I got to enjoy better quality seafood.

New Synagogue

Prior to the Second World War, the synagogue was badly damaged during Kristallnacht and the synagogue could no longer hold any services. Since the war, the synagogue was reconstruct and it is now the main synagogue for the Jewish community in Berlin.

Olympic Stadium

The current stadium was originally built for the 1936 Summer Olympics. Since the stadium was built during the Nazi period, the architecture of the building follows the Nazi style. Apparently, it was at these Olympic games that the tradition of the torch marathon began.

Potsdamer Platz for the Third Time

On our second night in Berlin, we went back to the Sony Center to relax for a little bit again. This time I got to try new kinds of beer such as mango and passion fruit flavoured wheat beer. It had an interesting flavour, but I thought the regular kind tasted a little better.

The Brandenburg Gate and the Reichstag at Night

When we arrived here at night, we found this place to be deserted even though the landmarks here looked amazing in the night. It was a good thing for us since there weren’t any tourists around. It allowed me to get really clear shots of these places.

The East Side Gallery

This area contains a continuous segment of the Berlin Wall that is 1.3 km in length. Along the wall are paintings from artists around the world to promote freedom in the world. The gallery also features the iconic political painting of Leonid Brezhnev and Erich Honecker kissing during the days of the GDR. There was also a souvenir shop here that stamped people’s passports with the GDR stamp for one euro. I thought that was a cool gimmick.

The Topography of Terror

To document the terrible deeds that the Nazi regime and the SS perpetrated between 1933 and 1945, an open-air museum was set up at the site of an old SS installation. It talked about how the Nazi’s transported people from conquered areas to the concentration and extermination camps set up across the continent. There was even a special exhibit just on the war crimes perpetrated by Adolf Eichmann. Near the museum were also SS buildings that have been converted to government offices.

Going Home

After three days of travelling in Berlin, we were all very tired and we were ready to go home. We went to our train platform for the ICE Sprinter about five minutes before the departure to find out that our train wasn’t there. We had no idea were it was and we didn’t want to miss the train. Apparently, some arsonists damaged some parts of the railway so the train ended up stopping on a different platform. Luckily, we found out in time and we managed to get on before it left. On the way back, I got to see some fantastic scenery of the German country side.

Souvenirs

I found that it was this trip that I spent the most money on souvenirs. I ended up buying Ampelmann themed cell phone accessories and a full sized flag of the USSR (not that I’m a communist or anything).

More photos here

This year, the company celebrates the 125th anniversary of the company’s founding as well as the 150th birthday of Robert Bosch. Because of this special occasion, the company created a photo book, known as Global Impressions of Bosch and in it, are 125 photographs of Bosch employees from all over the world taken at the same instant.  This book was given to every single employee, or associates as the company calls us, as an appreciation for all of our hard work.  I flipped through it, and I have to say, there are some really nice pictures.  I also found the pictures online in the form of YouTube videos (link at bottom).  I really like the idea of getting all the pictures at the same instant.  They managed done to pack as much as they could about Bosch at the exact same time.  It’s like they say, each picture is worth a thousand words.  With 125 pictures, that’s like 125000 words.

YouTube Videos: http://www.youtube.com/results?search_query=global+impressions+of+bosch&aq=f

Bosch News: http://www.exportapr.boschsecurity.com/content/language1/html/4863_ENU_XHTML.asp

Switching the Language for Windows

To do this, go to the Control Panel and open the Regional and Language Options.  This might be hard to do when Windows is in a different language so just look for the icon that has a globe on it.  Depending on the version of Windows, switching the language may not be possible.  And also, different versions of Windows put these buttons in different places within the Language Options.  Click around the tabs, and there should be a drop down box for you to change the language.  Once that’s done, restart the computer.

Switching the Language for Office

Hopefully switching the language for Windows worked, because it would really help for this part, although it isn’t necessary.  Not every version of Office supports changing languages.  It depends on the version that was installed.  Go to the Start Menu, find Microsoft Office, and then Microsoft Office Tools.  Under there, there should be an icon for Language Settings.  The icon has a globe and an A on it under Windows 7.  Open it and change the language.

• Nominal Size
• Thread Form Type
• Major Diameter
• Pitch
• Root Radius
• Pitch Diameter
• Minor Diameter (Male Thread)
• Minor Diameter (Female Thread)
• Thread Height (Male Thread)
• Thread Height (Female Thread)
• Tap Drill Diameter

Link: http://www.newmantools.com/tech/threadm.htm

Update 24 Sept 2011: Added info about screw head dimensions
http://www.csgnetwork.com/screwsochdcaptable.html