On Tue, 23 Apr 2013 12:26:55 -0400, Bob Engelhardt
wrote:

My angle grinder has a brushed motor, meaning that it can be slowed down
with an SCR-type speed control (e.g., HF's "Router speed control":
http://www.harborfreight.com/router-...rol-43060.html ). I know
that it won't have as much power when slowed down & that won't be a problem.

The question is: is it going to be harder to avoid burning it out? It
can be burned out at full speed, too, and I know how to avoid that. Is
it different at slow speed?


Not sure why you are looking to reduce speed.
In my case I wanted to use Scotchbrite pads for surface prep and these
burned at the full 11,000rpm.
In the end I got a variable speed Makita 5" grinder which works just
fine.
Is that an option for you?

Michael Koblic,
Campbell River, BC