Juroen
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Everything posted by Juroen
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@Lego_GBC_NL Set timing program runs the motors in low speed so you can adjust the timing of the pneumatic switches. This is something you have to do before you run the program at normal speed. This requires some fiddling. After you have set the timing, you have to initialize the module. This sets the turntable and the pneumatic switches in the correct position before running the program. 5th program isn’t necessary.
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7. I don’t have any schematics. It’s not that difficult if you follow the instructions on my leaflet. 8. My program with ‘set timing’ ‘initializing’ and running is the latest version, I have published. I have also made another version with ball counting.
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@HRU_Bricks thanks for answering all those questions. @Lego_GBC_NL Enjoy building, if you have any questions left, let me know.
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Trouble understanding timer block
Juroen replied to Juroen's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
OK, I did something else wrong and I figured it out. Topic closed! :-) -
I have trouble understanding the timer block. I have a GBC module and made a program which detects balls. If for example 2 minutes no balls are detetcted, the program has to stop. But whenever balls are detetcted, the timer has to start counting from 0 again. A part of the program which detects balls and resets the timer is below. I don't understand how to make a program line with the timer block which actually stops the program when no balls are detetcted for 2 minutes. Can anyone help me out?
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@Ankoku Thanks, I fixed the link in my post.
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For the Akiyuki ball cleaner; Stud.io file, bricklink xml file, EV3 file and some additional information is available on my bricksafe: https://bricksafe.com/pages/Juroen/bc-t76
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@Ankoku @Innocity @HRU_Bricks I’m running the ball cleaner on an airbrush compressor set at approx. 2,8 bar. It is impossible to run the ball cleaner on a lego compressor. If you require a large quantity of air and you decide to use an airbrush compressor be sure to use a moisture trap. Eventually the compressor will get hot, therefor I think it’s not suitable to run for 8 hours straight.
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@Ankoku It is :) 9v system hasn’t built it yet. But I’m sure he will. :-)
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@9v system Thanks. I don’t have a complete part list. Below are some of the main parts: 1 EV3 brick; 4 light sensors; 1 large servo motor; 2 medium servo motors; 1 L-motor; 1 M-motor; 6 meter custom & original EV3 cables; 1 conversion EV3/9V cable; 5 pneumatic switches; 7 48mm pneumatic cylinders; 2 32mm pneumatic cylinders; 1 air tank; 1 pressure gauge; approx 9 meter pneumatic hose; 3 shock absorbers; 1 linear actuator.
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To detect balls which start the servo motor for the cleaning procedure. I might adjust the program to stop the cleaning procedure if during a specific time, no balls are detected.
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Done!
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Done!
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Almost done!
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How did the module perform on the first exhibition?
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Congratulations! Well done! The thing you are missing on the press module are springs and the possibility to adjust the pressure from the press.
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Had to make some final changes on the design to connect the EV3 charger. Almost ready for my first GBC, only thing left to do is to buy an airbrush aircompressor.
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@HRU_Bricks Almost done, looks very promising. Could you explain how the module is controlled by boost?
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It looks the same. I guess you’re right. At first I also thought that Akiyuki used a random cloth. Last week I used google translate to translate his Japanese blog. http://legokarakuri.blog91.fc2.com/blog-entry-64.html I found out that only the hoses were not from Lego. Then my search started and I ordered 3 new cloths on bricklink for a reasonable price.
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@HRU_Bricks Yes, there is. From the Belville series. No part number though. https://www.bricklink.com/v2/catalog/catalogitem.page?P=towel#T=C
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Finally, I have found the LEGO cloth.
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To run the ball cleaner in closed loop mode, I have added a modular track on the backside of the ball cleaner. This design is based on Berthil’s ball feed of the invisible lift module. https://bricksafe.com/files/Juroen/building-tech/872AAE9A-9765-4A65-9BB3-F9416FE32E6C.jpeg/1920x1440.jpg The track is easy to disconnect so the module can also run in GBC mode. https://bricksafe.com/files/Juroen/building-tech/866D53F4-6396-4D74-974B-2E4145CB7A1E.jpeg/1920x1440.jpg I made this with the parts I had. Eventually I will make this with black parts.
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I noticed Akiyuki changed his original design to this, so I thought it would be the best solution.
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@HRU_Bricks I have added some close ups to my bricksafe.