Screwless Heart Gears

Created by emmett, source
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created 21/08/13 07:24 , updated 21/08/13 07:32


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At last, here is the much-requested 100% printable heart gears. No more ugly bolt holes! This was designed along the same lines as the screwless cube gears: thingiverse.com/thing:10483, and in fact uses the exact same center block (though the pins are slightly shorter).

UPDATE: If you lack a 3D printer, you can now buy these from CarryTheWhat at etsy.com/shop/CarryTheWhat.

The size has been increased a bit from the previous version to accommodate the printed pins, so it now measures 100mm across when assembled. Since everything is now printable, it should be easy to scale this design up or down as you see fit. At this size it took me ~6 hours of printing time on my TOM.

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Instructions

Print the parts list. The separate files for gears 1, 3, 5, and 7 are just there in case you have a problem with the four gear plate, or if you want them in separate colors. Use multiply to print four of the pin pairs at once.

Plug the short pins into the holes on the small faces of the center block; plug the long pins into the large faces. Slide each gear onto its corresponding pin. I like to start at the top, because it's more obvious how the gears align with each other when you work your way down.

It's always difficult to calibrate a printer to make perfectly fitting bushings, but the good news is if your heart comes out too tight to turn nicely or so loose it's wobbly, all you have to do is make new pins. You can either regenerate them with different parameters from the scad file, or you can just take the existing pin file and stretch it as required in the various axes. This means the big prints won't be ruined by a miscalibration.


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Latest Changes

Aug 21, 2013

  • Update file heartpins.stl
    By mirror at 07:32
  • Update file heartgear1357.stl
    By mirror at 07:32
  • Update file heartgear8.stl
    By mirror at 07:31
  • Update file heartgear7.stl
    By mirror at 07:30
  • Update file heartgear6.stl
    By mirror at 07:30
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