Redesigned Worm Gear

Tue, 17 Jul 2018

I’ve had some success with paper worm gears in the past but the limitation has always been that the worm itself flexes under use. Like this.

To make the worm stronger I have rebuilt it as a double layer. I’ve separated the layers by 5mm at the base…

Then joined them together at the top so that the worm itself has a strong triangular cross-section.

The result is a lot more substantial…

It meshes nicely with the ten tooth gear.

Next step – I’ll mount these parts into a box and release it as a download so you can try it out.

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