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Large "Print-in-place" Ball Bearing (Ø145mm)

by barspin, published

Large "Print-in-place" Ball Bearing (Ø145mm) by barspin Oct 29, 2014
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Summary

I needed a slightly larger 3dprinted ball bearing than i already have for a demo.
There is a 0,3mm gap between the parts themselves and the custom support. Just print and remove support.
Printed in ABS w 0,15mm layer height.
Short video (courtesy of Creative Tools):http://youtu.be/nqusY3M5Lso?list=UUGWmj8zbYmQFBZxZvGzR_Bw


By Daniel Norée

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Do you have this in STL format without the support? I can't pull the support from mine after I printed it.

How can I scale it to 50mm inner diameter?? Thanks

Comments deleted.

I printed mine on the UP! Mini with supports, and it was at .25mm resolution, came out beautifully!

dang daniel back at it again with the white vans

I saw that this was fusing for a lot of people, so I remixed it to try and avoid this happening to me as well. Haven't attempted it yet, but do note that Daniel printed with 0.15mm height—I know I rarely print thinner than 0.3mm, so I imagine that's why it fuses for most.

The wrong file. Support tightly printed with balloons. It is impossible to separate.

I've tried printing this multiple times at 75% and 50%. Never works. The balls fuse to the sides and to the supports. Thought maybe I was overextruding, but even tweaking the extrusion didn't help.

i take out the supports and give a BARSPIN the credits for the bearing. http://www.thingiverse.com/thing:919325

Giant Bearing
by loco12

Could you provide an STL file without the supports? The STEP file has something weird with it. When I export it as an STL I get a non-manifold part, and netfabb can't fix it.

With what material you printed?
Printing in 50% scale, I tried ABS but the spheres warped at the bottom layers, where no support is in contact...

I tried to scale it down 25% and the supports bond to much. Is it possible to have version without supports so I can make my own?

What is the smallest size it you could print this?

This is so cool Daniel! Thanks for sharing the 3D file!

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