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Converting to rheostat


#1

Orchid folk:

I have a single speed drill press which I would like to operate
using a variable-speed foot pedal (rheostat). Currently it has just
an on-off switch and one electrical wire that plugs into a wall
outlet.

Do you know how I would best make this conversion? I’m assuming it
is possible. Do I call an electrician?

Gesswein and MicroMark both sell foot pedal rheostats and I would
expect other companies do as well. Any advice on what I’d need in
the way of the rheostat?

Thankyou!
Tracy
@tracymunn2


#2

If – and that is a big if – it has the type of motor in it
that can be regulated with a rhostat, all you have to do is plug the
rheostat into the wall, and plug the drill press into the rheostat.
I suspect that, since it is a single-speed drill press, it cannot be
used with a rheostat.

margaret


#3

Hi Tracy,

I have a single speed drill press which I would like to operate
using a variable-speed foot pedal (rheostat).  

It all depends on the type of motor your drill press has.

In order to use a rheostat type foot control, the motor needs to be
a universal ac/dc motor. Look on the motor name plate for the type of
motor. If it says ‘Universal AC/DC’ or ‘AC/DC Series’ the rheostat
will work.

Be aware that when using a rheostat & running at slow speeds the
motor won’t provide as much power as when running wide open or
without the rheostat.

A good source of foot rheostats for small motors is a store that
sells & repairs sewing machines. They use the foot control you are
probably interested in.

Dave


#4

Hello Tracy: You need to look at the tag on your drill and see how
many Amps it uses. If it is equal to or less than a foredom flex
shaft motor I would use a foot pedal from foredom because you can
just plug it into the outlet and plug your drill into it. Another
source for electrical parts is www.grainger.com Mike Mathews