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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: Help Needed – Teensy Hangs and Fails During Welding on AR4 Robot (Possible EMI Issue)

I know this has been an issue for others, here is one post I recall I don't know for sure what the solution is, as mentioned in the other post I kno...

1 month ago
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RE: How to identify models and migration paths ?

Hello, The MK1 was the original design with the external enclosure. For the MK2 The J4 gearbox was updated and steps per degree increased to 49.777...

1 month ago
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RE: Disable Encoder

If you have encoders you can enter the encoder CPR value on the kinematics tab, but its not necessary, as you noted the software allows you to ignore ...

1 month ago
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RE: J6 Motor and Housing Fit

I think you are correct, it must not be seated down in far enough. It is a close fit for the motor sweeping past the housing.

1 month ago
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RE: J6 Motor and Housing Fit

Hello, The part in your photo appears to be the 32mm version from the MK1 or MK2. If you look in the MK3 downloads you should find a file "J6 Housing ...

1 month ago
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RE: Strange issues when jogging with the Cartesian functions

Hello, from your video it looks like the jogging issues could possibly be a robot singularity issue. Please see this forum post for more details. Ple...

1 month ago
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RE: Teensy Board 4.1 No Power

The 5v to the teensy board is provided by the computers USB port. The teensy uses the USB power for the 5v and 3.3v terminals. If you have no power it...

1 month ago
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RE: Digital low signal output arduino nano

I believe you are correct and would just need to change the output to digital low.

1 month ago
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RE: Teensy Connection Issues

I would start with checking the 3.3v and 5v terminals on the 3 pos terminal block. If either of those is shorted to ground anywhere in the wiring it c...

1 month ago
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RE: Level Shifting 5V Encoder Signals for Teensy?

The encoder output is listed at 5v but I believe the actual output is between 3.3 and 3.5. The teensy board has never had an issue handling the encode...

1 month ago
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RE: Version 5.1 teensy sketch ModbusMaster.h issue

Yes for some reason the Modbus master library sends a few "defined but not used [-Wunused-function]" warnings. I have not been able to resolve the war...

1 month ago
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RE: Version 5.1 teensy sketch ModbusMaster.h issue

@goto_2004 is correct. If you navigate to Tools / Manage Libraries and install ModbusMaster you will be able to install the sketch. I have also added ...

1 month ago
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RE: Request for J7 Calibration Command in AR4 Software

@thu-htet Are there any errors listed in the python console? When you create the .exe you also need to make sure all the supporting files are copied o...

1 month ago
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RE: Request for J7 Calibration Command in AR4 Software

I added some code to a beta version 5.2 for the HMI interface. Here is the source code - I didnt get a chance to fully test but if you have python ins...

1 month ago
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RE: Encoders start counting automatically when powering the motor

@alon-borenshtein Thanks for tagging me on this, If its working and helping those with the issue then Im sure it will be a good update. I will add th...

1 month ago
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