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JannH
@jann-h
Eminent Member
Joined: Jul 8, 2025
Last seen: Aug 16, 2025
Topics: 2 / Replies: 20
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RE: Cable Interference

Hi, this actually happens to me too. :/ lifting the cables higher up on the arm helped, but they still sometimes get pinched

2 months ago
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RE: How necessary is the enclosure fan?

Hi! Since you can tell it's too loud for your taste, I assume you've got the AR up and running? How about measuring the actual temperatures during hig...

2 months ago
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RE: J5 motor lead screw replacement or not?

..but as Richard mentioned, when you actually read the manual and watch which way the housing goes on the screw, only the very tip needs to be filed. ...

2 months ago
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RE: J5 motor lead screw replacement or not?

Hi, I seem to have the same issue, disappointed with stepperonline. The entire screw is 8.1-8.2 mm thick. Have to go filing something like half...

2 months ago
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RE: Back driving joints

From what I've read online it should be safe for the steppers (and drivers) to move them by hand slowly. Moving fast could potentially generate a volt...

2 months ago
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RE: J2 gearbox motor housing too far from J2 tension ring ?

@chris-annin Thanks for your quick responses, guys! Spacer seems to be 10.75mm, and after making sure the motor is fully seated in the spac...

2 months ago
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RE: J2 gearbox motor housing too far from J2 tension ring ?

@johann-voigtlander Nothing to hammer, shaft moves quite easily into the slot and motor bottoms out in the spacer.

2 months ago
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RE: J2 gearbox backplate screws glued in?

I purchased mine just a few weeks ago, and the screws really were quite tight. I got them all off by carefully using an impact driver.

2 months ago
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RE: Aluminum parts

@ahmet-karapinar If you actually looked at the link provided, it specifically states: "AR4 MK3 CAD Models - SOLIDWORKS & .STEP files" The s...

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

@alon-borenshtein Hi, xacro is a macro format for generating urdf's on the fly. You can do that in the terminal as well, you'll find samples online, h...

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

I have tested this with the MK3, looks very promising and works. We are still working with @ycheng517 on calibration details, my joints are a little o...

2 months ago
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RE: Kinematics Diagram

Hi! I'm sorry this comes very late, but for anyone else wondering, these can be found on the Downloads-page within the Kinematic calculation Sheet.

2 months ago
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RE: AR4 MK3 in Finland

For anyone interested, here's what the newest velocity control implementation might look like in practice. It allows for over 10 times faster accelera...

2 months ago
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