DIYbanter - View Single Post - how to bypass dremel tool internal variable speed control?

lj_robins

wrote:
I'm on my second electronic variable speed control inside my Dremel
model 395 tool. This one just crapped out with the same temperamental
symptoms as the last one. I need to use the tool tomorrow night, and
would like to bypass the internal variable speed circuitry to simplify
it; maybe buy an external control later.

There aren't any wiring diagrams I could find on the Dremel site. I'm
thinking if I had one for the model 275 tool (single speed) and the
395 (electronic variable speed), I might be able to make the 395 into
a 275 by just jumpering some wires. I'll probaqbly need to at least
retain the variable speed assembly, since the brushes fit into it.

Can anyone help?

I'm not positive, but I would think if you just soldered a wire around
the speed control it would run at full speed, I could be wrong though.

-Landon