this post was submitted on 27 Aug 2024
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I want to mount a printed part to a standard 2mm motor axis which doesn't have any dents or profile. Its just round. If I print at exactly 2mm, it fits for the first few times until it gets too lose and the spinning part sometimes falls off.

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[–] [email protected] 0 points 2 months ago (3 children)

Instead of making the hole the exact size, make a small gap so you can use a screw and nut to clamp it down on the peg

[–] [email protected] 0 points 2 months ago (2 children)

But doesn’t that create an offset weight? My part will probably spin at several thousand RPM.

[–] [email protected] 0 points 2 months ago (1 children)

What is the plastic of your choice?

PLA, PETG, ... behave like a very slowly flowing liquid as such the print will deform/expand (creep).

[–] [email protected] -1 points 2 months ago

I will be using PLA