1 Topic by iowajames

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  • From: Iowa
  • Registered: 2013-01-22
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Topic: What? A 3D printed threadless ball screw???

What? Is this a joke? No!

It's over on Thingiverse!

http://www.thingiverse.com/thing:112718

I posted it here, because I didn't design it & shouldn't put it in STL sharing. Who'll be first to give it a go?

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2 Reply by ITman496

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Re: What? A 3D printed threadless ball screw???

I really want to try that.. hm.  I wonder how much torque it can handle.

3 Reply by cmetzel

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  • From: Solidoodle2 #0091
  • Registered: 2012-08-22
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Re: What? A 3D printed threadless ball screw???

I floated that concept in March this year and nobody bit.

http://www.soliforum.com/topic/1813/rep … crew-idea/

4 Reply by elmoret

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Re: What? A 3D printed threadless ball screw???

The problem is that if it slips at all, your whole print is hosed.

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5 Reply by Hazer

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Re: What? A 3D printed threadless ball screw???

Big slips are obvious problems, making it an not ideal for Z axis. I am more curious about tiny slips at fast speeds. I have serious doubts about accuracy for X or Y axis movement due to tiny slips from speed. But who knows until you try it.

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6 Reply by 2n2r5 (edited by 2n2r5 2013-07-27 13:39:48)

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Re: What? A 3D printed threadless ball screw???

Adrian is testing this out and I have an OpenScad version specifically for the solidoodle that I am testing out right now. It isn't ready for the general population yet. If someone wants access to test it and give feedback so I can develop it faster, I would be up for that. I have a bunch of stuff to add but this should be getting pretty close to functional. I printed some out last night to try on a 3/8" rod with 625zz bearings. 

http://2n2r5.com/pictures/printer/show-n-tell/threadless_ball_screw.bmp

SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

2n2r5's Website

7 Reply by MolecularConcept

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Re: What? A 3D printed threadless ball screw???

It would be very cool of this works.  I'd definitely do this upgrade