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Chris Annin
Chris Annin
@chris-annin
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Joined: Jul 8, 2025
Last seen: Oct 4, 2025
Topics: 6 / Replies: 532
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RE: J3 Belt Upgrade Kit (Store Link?)

Hi John, I took the belt kits out of the store as it was causing a lot of confusion and people thought they needed to buy a robot kit and a belt upgra...

2 months ago
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RE: #6 x 0.375 thread form screw

I think the #6 is going to be between a 3mm & 4mm screw. I would try a 3mm x 8mm thread forming screw. Unfortunately the specialty metric screws a...

2 months ago
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2 months ago
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RE: j1 base plate question

I'd have to take a closer look at the clearances but I think you could potentially run into issues with the position of the J1 motor and the belt if y...

2 months ago
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RE: Arduino nano or Arduino Mega

Hello, you can still use the mega sketch on the AR4 - I simply switched to the nano because it is lower cost and most people only need to control a gr...

2 months ago
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RE: About Loctile

I've build and reassembled a number of times. I haven't had any issues removing any set screws, even the small ones. I have always used medium strengt...

2 months ago
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RE: NO CAL FEEDBACK FROM ARDUINO AR3

That error happens when the calibration times out and a valid response is not received. Can you check at each of the teensy pins for J1 through J6 tha...

2 months ago
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RE: j2 motor assembly not fitting j2 spindle

OK thank you, I will talk to Stepperonline about making sure these are fully pressed in.

2 months ago
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RE: j2 motor assembly not fitting j2 spindle

It looks like the key may not be fully seated into the motor shaft but I'm not sure. Can you see if the key will seat further down into the shaft and ...

2 months ago
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RE: Cleanest 3D printing orientation?

I printed both of them flat. I haven't tried printing the J2 spacer upright as I was concerned about quality printing a part that tall but it may work...

2 months ago
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RE: Engine doesn't work

Hello, can you send me close of pictures of the electrical enclosure showing the wiring to the drives, the wiring to the control board as well as clos...

2 months ago
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RE: After calibrating it, the degrees advance on the screen, without the arm moving.

That is very interesting I have not seen that issue before. I think it could be an issue with the J5 encoder, possibly a grounding or signal issue. I ...

2 months ago
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RE: Calibration issue

If its moving a very short distance and then displaying successful calibration its likely that the teensy board is seeing +5v at all times even when t...

2 months ago
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RE: Non Stepper Motor Online Motors

That is a good suggestion and I will work on getting that file added. If anyone who ordered the files previously would like to email me at info@anninr...

2 months ago
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RE: AR2/3 Variant with J2 damper

This was a counterbalance that I incorporated into the design of the AR2 early on. This spring loaded pull back that would give J2 assistance for addi...

2 months ago
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