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Chris Annin
Chris Annin
@chris-annin
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Joined: Jul 8, 2025
Last seen: Sep 13, 2025
Topics: 6 / Replies: 529
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RE: External Handheldpanel & Linux (Raspberry Pi)

Yes, see here on the project repository:/span> this was provided courtesy of Zach Allen.

1 month ago
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RE: Difference between AR2 and AR3

The primary difference is the dual shaft motors, encoders, teensy 3.5 control board and updated wiring and print files. You can definitely use the sam...

1 month ago
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RE: Does the 24V power supply have any headroom for a few solenoids?

according to the driver spec sheets I believe the 6 drivers draw 198W so I think you should be fine with another 5 to 8W

1 month ago
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RE: Problem opening AR4.py

Yes that looks correct

1 month ago
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RE: Problem opening AR4.py

Check and see if you have ttkthemes installed. I will make an updated source code info readme doc on the next release

1 month ago
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RE: AR4 v2 Install Issue

I updated to python 3.10.7 - let me know if this version works/span>

1 month ago
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RE: AR4 v2 Install Issue

I've had a few reports of people having issues after the last windows update. Are you able to run the last version 1.3?

1 month ago
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RE: Issue with AR3 ARCS_teensy_sketch Encoder.h file not compiling

Hi Quinn, do you have the encoder library installed?  Issue-with-AR3-ARCS_teensy_sketch-Encoder.h-file-not-compiling.avif

1 month ago
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RE: AR4 J2 Backlash Normal?

@michael-bigos Great thank you for the feedback. I will look into the keyway dimensions and see what can be done without making it too hard to assembl...

1 month ago
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RE: AR4 J2 Backlash Normal?

The J2 planetary gear box does list a backlash of 25arcmin in product spec sheet. With the motors powered on and the arm in compression or carrying a ...

1 month ago
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RE: How to start/stop the program robot by pressing the push button (input)?

You can use the wait input function to wait for an input and then wire whichever input you choose to a start button. This would require you start or p...

1 month ago
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RE: Effects of Mistaken Wiring on Teensy

I would not expect swapping cables 1 and 3 to cause any damage to the teensy board.

1 month ago
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RE: AR3/4 Not Working in Closed Loop

The encoders being just incremental - I have the code in the sketch monitor the encoders throughout a commanded move and verify that the commanded mot...

1 month ago
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RE: Kinematics Diagram

Hello, yes the robots DH parameter's are on line 249 in the sketch: float DHparams[6][4] = { { 0, 0, 169.77, 0 }, { -90, -90, 0, 64.2 }, {...

1 month ago
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RE: Teensy Is at 3.3v logic. Stepper controller is at 5v??

@joseph-puzzo I think you'll need to run the AR4 sketch with -neg pulse. Keep me posted if you have any issues.

1 month ago
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