Ball Bearing
Description
Instructions
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If you don't like balls falling out of your ball bearing, may I suggest this version:
http://www.thingiverse.com/thi...
The tolerances are a lot tighter, but the balls will be loose as soon as the raft and support are removed. (Default Skeinforge support works well)
Also -- if it gets loose and balls fall out, if you wrap the inside core with kapton or PET tape the bearing goes back together tighter and still spins great.
Printed one tonight in yellow. Works great but is loose enough that balls can fall out once it's cleaned up. Video of it spinning here: http://www.youtube.com/watch?v...
Great idea! I haven't tried printing it yet, but incorporated it into my filament spool, http://www.thingiverse.com/thi...
Thanks for the design.
I would think that some kind of roller element bearing would print more reliably, and would have tolerances more suitable to printed parts.
This is pretty awesome. I had to print it from SD card, the ball bases were too detailed to print via USB. It was a little hard breaking the balls loose, but once I got it going and put it on a drill to break it in, it's relatively smooth. Might be easier to print if it were larger. Here's a video:
i just printed one and its actually too loose and the balls fall out! But it does work well untill that happens :)
im going to try one of my denser profiles.
Yuck. I ending up aiming a little loose on my tolerances because I was ending up with bearing shaped hockey pucks. I could make the balls larger or the races close a little more. I'll post the solidworks files if anyone is interested. Nothing much to really write home about.
kinda ugly, but yet a very smart way to use the limitations of the printer tech.
And what kind of printer did you use? I've heard of this being possible with UP and some other systems... I wouldn't imagine a stock makerbot could do it, though...
I tried this a while ago, but Skeinforge wasn't able to slice a model with that tight/complex clear spacings. Did Skeinforge get that much better or are you using any special settings to slice this?
There's also another bearing at http://www.thingiverse.com/thi... with even tighter spaces and slices up fine with skeinforge 31. Far fewer faces in it than this one but doesn't have the pegs so you need to enable the skeinforge support stuff.
I printed that one but it came out sorta crappy since I was using a new profile for my .35 nozzle. Need to try it again (or this one) now that I'm dialed in a bit better.
I'm pretty new to skeinforge but it did an amazing job. I've had some serious problems with other prints that looked easy, such as the darth vader head. This one went off without a hitch.
&
gt; The more you play with it the smoother it becomes
The more you play with it the looser it becomes :-D
Holy awesome. Now I'm one step closer to my new dream of fully printable rollerblades.
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It looks so cool, never thought 3D printer can do this