Topic: Turntable wobble
I don't know if anyone else that has already assembled their scanner had the same problem as I did, but I noticed that the turntable can pick up a wobble in it, due to a couple of factors.
1. The hole for the motor shaft is oversized (5.5mm hole vs. 5mm shaft).
2. THe coupler is too short in length
These two factors contribute to a lot of play, and make it very hard to set the turn table perfectly square.
So for myself, I drew and printed an 8mm extension that has a tighter tolerance (5mm). I then placed the extension on the motor shaft, and glued it to the bottom of the coupler.
The new setup, nearly touches the bottom (where the motor face is). All the play and wobble is now gone. For those that have similar problems, I'm attaching the STL file of the extension I printed. It also has 3 holes on the side for adding 3mm set screws.
Alternately maybe someone that uses OpenSCAD can modify the original turntable coupler to extend it about 8mm.
SD3 printer w/too many mods, Printrbot Simple Maker Ed., FormLabs Form 1+
AnyCubic Photon, Shining 3D EinScan-S & Atlas 3D scanners...
...and too much time on my hands.