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j2 motor assembly not fitting j2 spindle

The key on my j2 motor does not seem to be a close fit to the j2 spindle keyway. Seems to be at least 1 mm to large. So putting in the freezer will not fix this. Am I missing something or should I take a dremel to the motor key.

Mike

3 answers1 reply

4 Comments

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Hannes Kock

Jan 24

I had the same problem with the 3D printed model as well. I had to reprint the spindle and the bearing-holder

Chris Annin

Nov 01, 2021

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

Chris Annin

Oct 30, 2021

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 let me know.

Finland Skis

Nov 01, 2021

Replying to

Hi. Yes, that was the issue. I was able to push the key in further. It was still a tight fit. Needed to put it in the freezer and use some lithium grease. Also had to hit the motor housing couple of times to get it in.

ANNIN ROBOTICS

j2 motor assembly not fitting j2 spindle