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Multi Purpose Rotary Machine - Mulling, Welding, Pottery, Photography Turntable

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Step 28: More Pulley Talk

Picture of More Pulley Talk
pulley support2.jpg
clamping up new pulley.jpg
setting up the ply disk for turning.jpg

I could have gone to town and cast the larger section of the pulley from scrap aluminium but at the speeds and forces involved a plywood pulley will be ample. I trued it up on the lathe and gave it a little crown to help the belt track.

On the larger diameter pulley the surface contact area is large enough that cutting grooves is not necessary (which is just as well as it wouldn't work well in plywood!)