Because there seems to be only one lead on the spiral, or 5 or 6 start screw and not disengaged, dividing is achieved by the little rotary table on the face plate.
Sincerely,
Toolmaker51
...we'll learn more by wandering than searching...
There is a 'Router Lathe' that was common late last century that was used for making table and chair legs among other things.
The type I recall. Never saw one demonstrated; did changing spool ratios generate a different helix? How was dividing managed?Originally Posted by NortonDommi
There is a 'Router Lathe' that was common late last century that was used for making table and chair legs among other things.
Sincerely,
Toolmaker51
...we'll learn more by wandering than searching...
"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 02:41 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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