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I remember using a saw like that in shop class in 1953 and we called it a "jig saw". I think the modern, hand held, jig saw had not been developed then, not sure.
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The blades were approximately the size of what we now call saber saw blades; tight turns and extremely fine work were not possible. I well remember using one of these machines in shop class- not much fun. A couple of these saws were allegedly modified to use blades of modern dimension, but these machines supposedly broke the modern thin blades too frequently to be useful.
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History Question
I have seen the early scroll saws (pre 1950) had a cast solid upper arm with a spring (like a valve spring) where the blade attaches. Under the table is a oil filled casting with a crank shaft mechanism to give the vertical blade movement.
The design concept seems bullet proof and having a blade with perfect vertical movement would be normal.
Anybody know why the change over to the designs of today?
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