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Chris Annin
Chris Annin
@chris-annin
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Joined: Jul 8, 2025
Last seen: Oct 6, 2025
Topics: 6 / Replies: 532
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RE: am I missing something

Thats the correct screw. I will review with the vendor and check the next batch. I fully test assembled one unit but didnt see this. Please let me kn...

3 months ago
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RE: am I missing something

Are those M3x10 flat head screws? They appear longer. Is it possible I made an error in the hardware kit? Please let me know as soon as possible so ...

3 months ago
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RE: Payment issue from Turkey

Unfortunately PayPal is the only option I have currently although I think you can checkout as a guest using Visa or MC, does that wait?

3 months ago
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RE: ROS 2 Driver for AR4 Now Available

I wanted to mention that Yifei Cheng has added files for the MK2 to this repo. I have not had time to test yet but I was hoping someone in the comunit...

3 months ago
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RE: Tarrif Cost of AR4

Unfortunately I still have to pay 70% on any aluminum manufactured parts: Aluminum parts from China remain subject to the following tariffs: 25...

3 months ago
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RE: Tarrif Cost of AR4

Where are you seeing a pre-payment for tariffs? I don't have any prepayment or tariff charges listed as part of the purchase. Unfortunately I did hav...

3 months ago
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RE: AR4 Control Software does` t want to start!

@Minh Nguyen the serial com timeout should be the only difference but I'll do some testing on the calibration and let you know what I find.

3 months ago
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RE: AR4 Control Software does` t want to start!

I have compiled a exe beta version that has the serial timeout added. Please let me know if anyone having the windows 11 issue can open this and then ...

3 months ago
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RE: AR4 Control Software does` t want to start!

Interesting, thank you for the feedback on that. The serial commands are nested in a "try" function which should write an error to the log if there is...

3 months ago
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RE: AR4 Control Software does` t want to start!

That error indicates the icon file is not in your build folder. I have not yet figured out the initial issue. I just bought a brand new windows 11 com...

3 months ago
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RE: AR4 Control Software does` t want to start!

I haven't been able to reproduce the issue on windows 10 or 11 but Cody was able to send me a screenshot of the cmd window / error which helps immense...

3 months ago
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RE: AR4 Control Software does` t want to start!

I've run the exe on windows 10 and 11 machines and have not been able to replicate the issue. I am continuing to investigate, in the meantime please k...

3 months ago
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RE: AR4 Control Software does` t want to start!

Are you trying to run the source code or just the exe file?

3 months ago
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RE: Axis coordinates off after poweroff (repeatability issue)

If it is off by 4mm after powering off and back on I suspect the arm is moving slightly when powered off? as the motors do not have brakes it must rem...

3 months ago
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RE: Axis coordinates off after poweroff (repeatability issue)

If you park the robot in the vertical rest position, power the robot off and back on without disturbing the arm position does it maintain position aft...

3 months ago
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