Alberto Rivera @alberto-rivera· a year ago· 397 viewsSyracuse University

J1 motor/gearbox not tapped?

I'm trying to secure the J1 motor mount to the J1 motor housing, but the screw holes don't seem to be tapped? The holes in the attached picture look pretty smooth. I'm wondering if anyone has encountered this before? I'm considering tapping them myself.

Comment 3

Chris Annin

August 10, 2025

I haven't seen that issue come up before. I will contact Stepperonline to see if they have had any others. Let me know if you are able to tap this or if you have any issues.

Alberto Rivera

Syracuse University

August 10, 2025

Hi Chris, I messaged Stepperonline and they agreed to send over a new gearbox!

Chris Annin

August 10, 2025

That's great, I'm glad they are sending a new gearbox. I messaged them as well and they confirmed they are shipping it out to you. Stepperonline is really good about taking care of issues quickly. Thank you.

3 replies