Re: [CAD_CAM_EDM_DRO] Digest Number 424
Posted by
Andrew Werby
on 2000-03-28 09:15:20 UTC
Does anyone know a cheap source for small variable speed motors?
In particular 1/10 to 1/4 hp, preferably geared to less than 1000 rpm.
These can be DC motors, I'll put a speed control on.
I thought of using a drill motor, but don't know how reliable these would
be.
Am making a polishing machine.
Elliot Burke
[What are you trying to polish with this? For most things, it seems a bit
slow, if you're driving the polishing wheel or (especially) point directly.
If you've tried using a drill for this and it works, then you're probably
okay, but it would be worth trying. Flex-shaft polishing machines, like the
Foredom, work at about 10,000 rpm, off a series-wound ac/dc universal type
motor. You can get these at Grainger's , although I haven't been impressed
by their quality.]
Andrew Werby
http://www.computersculpture.com
Andrew Werby - United Artworks
Sculpture, Jewelry, and Other Art Stuff
http://unitedartworks.com
In particular 1/10 to 1/4 hp, preferably geared to less than 1000 rpm.
These can be DC motors, I'll put a speed control on.
I thought of using a drill motor, but don't know how reliable these would
be.
Am making a polishing machine.
Elliot Burke
[What are you trying to polish with this? For most things, it seems a bit
slow, if you're driving the polishing wheel or (especially) point directly.
If you've tried using a drill for this and it works, then you're probably
okay, but it would be worth trying. Flex-shaft polishing machines, like the
Foredom, work at about 10,000 rpm, off a series-wound ac/dc universal type
motor. You can get these at Grainger's , although I haven't been impressed
by their quality.]
Andrew Werby
http://www.computersculpture.com
Andrew Werby - United Artworks
Sculpture, Jewelry, and Other Art Stuff
http://unitedartworks.com