Bearing for filament spindle

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Published on October 31, 2010

Description

This bearing has an outer diameter of 51.5mm and an inner diameter of 8mm, making it perfect for making a resistance-free spindle out of an 8mm bolt, for example the one from the stock Rapman spindle. The outer diameter fits perfectly in reels from orbi-tech.de and the photos seen here are made using their amazing custom PLA mix.

This is also just a fun piece to print as it spins freely with hardly any cleaning up!

Instructions

Use Skeinforge support at ~20% density and let it do it's thing! Took me less than 10 minutes to clean it using only pliers and side cutters.

(Rapman 3.1.1 used to create this thing)

NOTE ON BFB FILES:
orbear2.bfb is only for printing PLA on a Rapman 3D printer.
orbear2abs.bfb is only for printing ABS (thanks Grok!)
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Could you post the source for this bearing? I'd like to crank up ID on this so I can use [less weak] printed shafts

The ONLY bearing on Thingiverse whose author states the inner and outer diameters. People, take a cue from Chylld! Would LOVE to have a parametric version of this... thanks!

This is what 3D printing is all about - And - I am about to try your bearing - 5/18/2011.

good luck! mine are still running smoothly after all this time...

You certainly deserve the accolades Chylld. Your prints are awesome. Your designs prove the sky is the limit. Thanks for letting us print your designs.

How do you upload the pict of a copy? Maybe just adding to this message?

Variador

thanks variador!

the best way to upload a pic is to click on the "I made one!" button on the right.

Printed out pretty well on my thing-o-matic, but I'm having a hard time cleaning out the balls.

Also, it seems that the inner hub is hollow instead of solid. And for some reason, skeinforge-0035 skenied it without a top or bottom, so I have only random toolhead-trails between the inner diameter and the outside of the interior hub.

I had carving problems with Skeinforge 35 as well - try 36. The inner hub is solid.

Jeesh! I'm new to the Thingiverse and I wanted to contribute a tested ABS version of your bfb file and it seems it was put here!!.... http://www.thingiverse.com/thi...

Maybe it can be moved here and I will get a picture up soon.

Anyway I attempted a couple of axon g-code creations and they created unusable build files, so I made changes to the PLA bfb file you posted and after a few attempts I was rewarded with a great print out of ABS that was a dream to clean
up!

I really like the profile you used and I wish I could figure out how to generate such nice support structure myself. Ahh well, I've only had the printer built for a couple of weeks, I should be patient!

Thanks for the ABS BFB file - have added it to the thing :)

This is probably one of the best printed bearings. I like the way it looks. My filament spindle is very reluctant and I have had the extruder actually lift the Z-stage off the leadscrew nuts because the filament failed to feed. Now once I put a second one of these bearings on the spindle I will have a truly unstoppable 3D printer. I use a MakerBot Cupcake CNC, btw.

Totally understand! Every time my spindle tangled it ruined my prints, and one time even managed to tie a knot in the filament which I didn't know was possible!

Looks awesome in your pics!!

Unfortunately I tried the BfB file with my Rapman 3.1.1 and Orbi v2 PLA, but did not work at all!!! raft and first few layers are very thin in deposition size... do you know why that?

I cannot find the right settings for this PLA! :'(

Thanks

I overlooked the most important thing - is your bed level and your Z calibrated well? I think at the time of printing, I could fit 3 sheets of paper between the extruder and the bed after homing the tool head.

That's strange, we have the same hardware and the same filament, so it should work! The only difference I can think of is that you may not be running the same firmware - when I printed this I was running 4.0.2s.

How exactly does it fail?

Maybe try printing it again straight after it fails, sometimes my first prints are a little bit off...

all my respect for the awesome design! I also tryed to print it, but unfortunately didnt came out as I expected. printed in Orbi PLA v2 and the head for some reason was kicking off the balls from the bearing :(. I know this can be a bad calibration, but all my other prints are perfect. dont know what can be the problem. well I suppose I
´ll have to try it again.

cheers and thanks for sharing!

sorry to hear you had problems with it! I've uploaded the exact .bfb file I used to print it, maybe give this a try?

Tried to print and it printed great but it was really, really difficult to clean. I think that it will be easier if is printed in two parts.

Can you be more specific on the support config?

Thanks!

Exact skeinforge support settings are:

Cross-hatch off
Flow rate over operating flow rate: 1
Gap over perimeter extrusion width: 0
Material choice: Exterior Only
Minimum angle: 60 degrees
Infill density: 0.2

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