Sadly the printed bearings in the previous post do not work as well as one might like…
I put it in a lathe at 200 rpm for 10 minutes and the PTFE bearing surfaces wore terribly badly.
Sigh…
However, we have found a replacement.
Here is a plastic and stainless steel bearing from RS together with a printed support for it. This should allow us to make something that works…
Update on Printed Bearings
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You should try using this style of design for a roller bearing:
https://www.thingiverse.com/thing:2345707
Found it works pretty well even under reasonably high loads. They last even better with nylon filament as the rollers.
No – I hadn’t seen that. Thanks! It’s rather clever.