Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

Parametric slew bearing

by jorgerobles, published

Parametric slew bearing by jorgerobles Jan 24, 2015
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Based on Matthew Sorensen gist of bearing, I've added some features, to make is a slew bearing (Picked up Idea from http://www.thingiverse.com/thing:321679)

This is a work in progress, you should better check out the scad than use customizer, at least for the moment.

This is a proof of concept for BQ Ciclop's bearing replacement.

08/11/2015 Update:
Minor update, parametric ball diameter

01/25/2015 Update:
Theres now a bunch other configurable parameters on customizer!


  1. Use Customizer to print the parts splitted (Outer Race, Inner Race Above and Inner Race Below)

  2. Get a hundred BB 6mm balls (or other diameter to fit your design)

  3. Print with 25% infill, no brim, no support. Outer race may need to print slower to get a fine race track.

  4. Assemble and screw

  5. Enjoy!

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That's the Inside diameter? The other dimensions?

Amazing!! Collected and done it !!

Aug 10, 2015 - Modified Aug 10, 2015

Hi, Sorry if it's a dumb question... but I cant figure out where to change the balls diameter... I have plenty of 3mm steel balls, would be nice if I could change the code to use it. Thanks a lot in advance...

Great Dude! thanks a lot. I'll try the bearing this week in PLA with 3mm steel balls... photos to come! Very nice work.. congrats! GRACIAS!

Thank you! Now I wanna get some glass/steel BB bullets to compare with the normal ones.

I should upload something I"ve done that was very similar, except that I wanted an extremely large lazy susan bearing and as such I split the raceways into 4 large pieces. i was able to make roughly a 20 inch diameter lazy susan. of course the typical issues are there - specifically that i now have 'bumps' or seams where each of the 4 pieces line up to each other - which can cause the bearings to 'stick' or have extra resistance.

all in all, the 6mm airsoft balls are very tough and my abs plastic is holding up well also. makes one hell of a noise when moving quick (i have a lot of bb's and a lot of surface area for them to rattle over).

good work man, i'll definitely have to use this for a small project!