MPMD Top Mount for Filament Spool

4/22 Update: New files uploaded to match more specific bearings. The "Spacerail Replacement Steel Balls Spacewarp Space Rail" available on amazon (https://www.amazon.com/dp/B006PPI71S?ref=yo_pop_ma_swf) will fit the new files perfectly. Message me if you have any questions.

4/16/18 Update: Files have been edited to fit better together and more accurately fit the hole layout on the top sheet metal.

I wanted a filament feeder to sit on top of the delta, but all the ones I found online had significant friction and when i printed one, it seized and caused a failed print. I saw others had the idea of doing marble bearings and followed that model to design a spool mount that should be very very low friction.

I designed this using onshape, and it can be found at the link below.
https://cad.onshape.com/documents/5833a4abaf0ee363f53434f8/w/eaafd4e25e87ca32adc9ccc8/e/80ccb1d7f737eb5029e1447b

For assembly, print the side piece twice, you can use M3 screws or just use the same ones