Making a Variable Speed Bench Grinder


Would putting one of those speed control switches typically used for routers work on a 3450 rpm bench grinder. Looking for a way to make the rpm's slower.
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On Wed, 25 Jan 2006 16:16:24 -0800, "Richard Waters"

No. That sort of control needs a universal (brushed) motor, not an induction motor.

Buy a half-speed (1400 rpm) motor. Same thing, but the way the windings are connected is different. Good for HSS turning tools, still too fast for bench tools
Buy a geared-down slow, wet grinder. This is a _much_ more useful tool as it can sharpen nearly all woodworking edges. Prices for these grinders also range from the incredibly cheap upwards (quality to match, but a 30 machine is still useful)
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