Hybrid 3D/PTFE printed LM8UU &LM8LUU

Hi all,

Thought I would share a little idea I had which seems to work pretty well, its a 3D printed bearing which also uses 2mm PTFE.

It makes use of commonly available PTFE tubing for the area which is in contact with the linear shaft, combined with a printable bearing housing. This has quite a few advantages; as it's light weight, PTFE has an extremely low friction coefficient and if the tube wears over time it can simply be replaced, without the need to dismantling the linear shaft assembly.

All the files details and a video can be found here http://www.thingiverse.com/thing:1739340

Cheers,

Ant

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[www.coder-tronics.com]
[www.thingiverse.com]

Wow, that is so cool!

I was surprised by how quiet it is even compared to the igus bushing...

Though I am concerned about the PTFE tubes crushing with load or over time. and not sure I could trust it printed in PLA as I have noticed any PLA under any amount of pressure seems to slowly warp and bend over time, ABS should be fine though as long as the PTFE can handle it I may have to try this in the future.

Edited 1 time(s). Last edit at 10/06/2016 10:53AM by DaGameFace.

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