crank and shaft

Crank, threaded rod, and shaft

3/8" t-nut pressed into crank. You may have to file a notch into it to make room for the pin

3/8" threaded rod, 16 turns per inch.

3/8" t-nut,

part of router bracet.

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Drill hole through piece of 5/8" dowel to make handle

Pin, 2.5 mm diameter, cut from a nail.

Mount in a hole 1.2 cm from crank center.

For second nut, file corners off, or use a spacer instead

bali bearing.

Wrap electrical tape around shaft to make it fit tightly.

Bronze bushings, 1" long.

These are pressed into the router mount, allowing it to glide up and down this shaft.

Polished Steel shaft (drillrod) 5/8" or 16 mm diameter Obtain from metal supermarket