"did changing spool ratios generate a different helix? How was dividing managed?"
I spent some time trying to find the instructions,(with diagrams),that I have somewhere without success. From memory the drive plate had multiple divisions like a dividing plate and there were different size pulleys to alter feed rate. They had a sliding guide bar for doing tapers and the more complicated ones could trace curves as well.
Not a lot to them but turned out lovely repeatable work fast.
I only know this because I had a friend,(now passed),who made high end custom furniture and he used one to great effect.
Last edited by NortonDommi; Jun 30, 2021 at 03:41 PM. Reason: spelling mistake.
Toolmaker51 (Jun 30, 2021)
I think this is one adaptation my ShopSmith is lacking. If I ever decide to get into turning wood again I might consider getting a ball lead screw an assortment of cogwheels and a timing belt make a rotary index and a router mount then, Humm not such a far fetched idea at that maybe my sis needs to spirally turned balusters for her front porch
Never try to tell me it can't be done
When I have to paint I use KBS products
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