Terry Coombs prodded the keyboard

Baron wrote:
Terry Coombs prodded the keyboard

Got any stepper motors for cheep? I think nema 34's will work ,
I want to
power the X axis and maybe the Y on my benchtop mill . I have (or
have components to build) controllers and power supplies , can
fabricate mounts
and the rest in house . I actually had an 18v HF drill motor all
but mounted , using a PWM controller and a 13.5 volt supply . At
the speeds I need it didn't have enough torque - though I may
revisit that setup now that I can cut gears .
And speaking of cutting gears , how about cutting pulleys for
cogged belts
, anybody got experience doing that that they'd like to share ?
--
Snag
As if I didn't have enough in the works ... but a powered X
on the mill will make some of that a LOT easier!

Have you considered car wiper motors ?

See my build log :-
http://www.homemodelenginemachinist.com/showthread.php?t=23130
You will need to register to see the pictures.

I have a couple sitting on the shelf , but they both have stripped
worm
gears that I can't repair . With the PWM controller I have here now
there may be other options for those too . Thanks for the reminder !

--
Snag

Hi Terry,
I get my wiper motors from the scrap yard for peanuts. On most of the
ones that I've played with the worm is just pressed onto a splined
shaft.
A PWM controller works just fine with these motors since they are
permag types. I've had mine upto 30 volts for rapid traverse, it
gets barely warm from one end of the table to the other, (762mm).

--
Best Regards:
Baron.