Parametric thumb nut

by ssd, published

Parametric thumb nut by ssd Sep 6, 2010

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Parametric thumb nut by ssd is licensed under the GNU - GPL license.

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4110Views 2645Downloads Found in Replacement Parts


This is a wing nut or knob for a 1/4" threaded rod designed to comfortably fit fingers.

Since the model is fully parametric, the hole size can be adjusted to match your rod, or the number of finger holes can be adjusted, etc...

The model works well with 3, 4, and 5 wings. More wings would fit if the radius was increased or the finger hole decreased, etc.

Note that the hole is conical, a bit larger on the bottom to make threading it easy. The knob should self thread onto the rod.

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Thanks! I modifed the scad a little bit to add a hub and a hex hole for an M4 nut and it worked great. The knob I printed replaces one I lost off my GPS bracket. I printed in black ABS and you can't even tell it's not the stock thumbwheel unless you look really closely.

I always wanted to make one of these a radio knob...now it is!