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Chris Annin
Chris Annin
@chris-annin
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Joined: Jul 8, 2025
Last seen: Sep 15, 2025
Topics: 6 / Replies: 529
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2 months ago
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RE: what is the software & hardware license of AR2

Its a modified BSD license, there is a copy of it in the software download folder. I would love to see people utilizing the robot for use in their bus...

2 months ago
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RE: Teensy sketch to control rc Servos useing the PWMServo library

I don't see why you couldn't do that. I'm not familiar with the PWMServo library but the AR4 motor control algorithm is designed for stepper motors so...

2 months ago
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Replies: 0
Views: 58
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RE: Linear Offset, OFF L

Thank you! I will take a look at add on the next update.

2 months ago
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RE: Shipment to Europ

Im sorry about the import duties I hadnt realized this would be an issue. I will put the value of raw pieces next time to keep this down.

2 months ago
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RE: J2 Stalling and skipping

I suspect this could be a mad connection to one of the motors AABB power wires. If you can email me a video so I can see the behavior and hear any sou...

2 months ago
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RE: J2 Arm.

My aplogies, I overlooked adding the split structural parts. They are listed under the AR3 downloads. I will try to get the AR4 downloads updated when...

2 months ago
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RE: RoboDK with AR4 robot

@mateo-josue-cruz-gallegos This was the last driver I had  AnninAR4Driver.zip

2 months ago
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RE: RoboDK with AR4 robot

I get a number of questions regarding connecting RoboDK to the AR4. During the initial development of the AR4, RoboDK contacted me and they requested ...

2 months ago
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RE: Open-source 3D printed underactuated robotic gripper

That's really slick. keep me posted if you are able to make one, Id love to see pics or video of it.

2 months ago
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RE: J2 arm 3D print version

As far as epoxying them together the bottom piece should be symmetrical. Just make sure that on step #3 on page 41 that the 2 holes are as shown when ...

2 months ago
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RE: European BOM and supplier list for electronics

Thats a great list. Thanks for sharing that.

2 months ago
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RE: AR4 kinematics

Hello, you can enter a tool frame offset in the upper right of the config setting tab. The base or world is fixed at zero. All the kinematics are in t...

2 months ago
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RE: J2 instructions have changed ?

I apologize for the confusion. The latest version of the manual version 1.6 includes new information for the new J2 gearbox update. I have put the pre...

2 months ago
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