How does a spindle sander oscillate?

I'm wanting to cobble together a spindle sander using the guts of a hand drill. Mounting it is pretty trivial, but it would be very cool if I could make it oscillate vertically as well. Unfortunately, I don't have a spindle sander to take apart so I can see how it operates. Can anyone tell me what mechanism moves the spindle up and down? Does it use the same motor that rotates the spindle, or is there a secondary actuator involved?

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Re-design4 years ago
A record player motor has very little torque. They depend on gear (friction)  reduction to work.  So they would not make a very good sander.

I once built and oscillating spindle sander using an old drill press.  I turned it upside down and attached a mechanism that I built to the quill lever that moved it back and forth.  That caused the sander to move up and down.
DId you get the idea from a Fine Woodworking book ? I've got plans in "making woodworking machinery"
I might have, I don't remember where I got the idea. I have the same book that you are talking about.
Vyger4 years ago
You could use an old record player (you know, those things that went around and around) and put platter on it that is cut at an angle. (A cylinder cut through the diameter but not at 90 degrees to the axis) The steeper the angle the more it will move up and down. It's just like how a warped record would move the tone arm up and down and sometimes create a distortion.

You could also look at the stuff to the right under the "related" column.
kelseymh Vyger4 years ago
What's a record?
Vyger kelseymh4 years ago
A permanent one or a criminal one? Or a Guinness one?
yoyology (author)  Vyger4 years ago
I see what you mean. I have a bunch of pullout electric motors, and I know at least one came from a record player, so it would have the torque.