More info on slowing belt/disc sander


This is a direct drive setup no drive belts involved. Rewiring it for 120 is a possibility but then it pulls 26amps and and it still turns at 3650 rpm.
Tom
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wrote:

And burns up.
Sounds like you need to replace the motor.
-- Regards, Doug Miller (alphageek at milmac dot com)
Nobody ever left footprints in the sands of time by sitting on his butt. And who wants to leave buttprints in the sands of time?
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Tom Cavanagh wrote:

If there's room around the machine, you can replace the motor with a shaft and bearings, move the motor to a convenient place and drive the new shaft with a belt and pulleys.
Replacing the motor with a 1750 rpm one would cost more but take less effort. Since you're slowing the sander by half, you can get away with reducing the motor power by half or more. (Your sanding material removal rate will also drop, but I'm assuming you're not a production shop.) This would save a few bucks on the motor and wiring.
Good luck,
Tim
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There's probably room on the motor shaft to mount a large pulley. Then use another motor, with small pulley, to drive everything. In other words, use the motor for a jackshaft. If you need to go fast again, just take off the new belt. Wilson

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Thanks for all the thoughts but this is a dedicated machine and is built that way. No way to add belts or pulleys. Just have to use a light hand I guess.
Tom

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When you're sanding something, press hard. :)

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Great solution. The man is a genius ! ! ! Would it also help to use worn sandpaper?
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Something really course would be best. More friction, slows the sander more. :)

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