Globoid (Throated) Worm Drive Model

This is a fully functional hand-cranked model of the throated (also known as globoid) worm drive. To put it together, you will also need 10 metric countersunk Phillips-head screws M3x12 and 2 metric nuts M3. Those can be purchased cheaply on eBay.

If you are curious how to model a throated worm drive, we have a video tutorial at www.otvinta.com.

We recommend that the two halves of the worm shaft be printed with a raft for better coupling. The raft and remaining residue should be removed wi