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Parametric Shaft Coupling

by Griffin_Nicoll, published

Parametric Shaft Coupling by Griffin_Nicoll Jan 9, 2012

Description

Similar to thingiverse.com/thing:7153 but many parameters. Defaults are a 5mm to 7.8mm shaft which is what I measured on my machine. I got rid of the cut on one side as that led to slightly uneven pressure inducing a bit of wobble. In this model you can change: shaft diameters, bolt sizes, washers (if used), nut traps, and overall dimensions. This will make a strong shaft coupling without using much plastic. The code also makes a cleaner stl then my previous coupling.

Recent Comments

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Thanks! Very useful work.

Good to know, thanks

The one solid layer was intentional so bridging is more effective. Otherwise there is significant droop around the holes.

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License

GNU - GPL
Parametric Shaft Coupling by Griffin_Nicoll is licensed under the GNU - GPL license.

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Instructions

Open the scad file and generate the custom coupling. Parameters are commented.

Comments

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loupe on Jul 12, 2013 said:

Thanks! Very useful work.

mp3_e46 on Apr 5, 2013 said:

Fantastic, thanks for providing this!

On a PrintrBot LC I coupled its 5mm z motors to ACME rod

Everything seemed perfect apart from one layer printed solid in the holes. Was easy to drill out. Presumably some parameters slight throw it for a loop? I am a noob so it could my fault

Griffin_Nicoll on Apr 5, 2013 said:

The one solid layer was intentional so bridging is more effective. Otherwise there is significant droop around the holes.

bepppppo on Jul 10, 2012 said:

Great design! thanks man! 8-)

zshivers on Apr 2, 2012 said:

Thanks for this! The parameter names are quite intuitive, making the coupler very easy to tweak.

green_domingo on Mar 12, 2012 said:

Thanks! Great work!

Techgen on Jan 10, 2012 said:

This is awesome. I just had my original couplings break this morning and I didn't have a 20mm long 3m bolt for the nophead version I printed out weeks ago. So I made one for a 5mm bolt. You are a life saver. Thank you.

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