re:Re: maxnc/sherline

hi
I don't really have a setup yet so things are still "changable." I am
thinking of buying the camtronics 3 axis 2 amp bipolar board and
using 3 180 oz/in 2 amp 2.1 volt bipolar steppers on my sherline. Dan
at camtronics suggested, if I understood him right, to get a 10 amp
transformer and use that as the power supply which would be around
$40. I would use a bridge and capacitor on it of course. Is this
fine? Is there a better "resonably" priced 3 axis 2 amp bipolar board
I can get?
thanks again
taus

--- In CAD_CAM_EDM_DRO@egroups.com, cnc4me@u... wrote:
> What kind of drives are you using. Bipolar chopper drives should
> have a current limit set. Also what kind of power supply.
Regulated
> supplies make bad chopper drive supplies because they dont have a
big
> enough capasiter in the output....Why dont you give a little more
> info about your setup. Also guage of wire to drive and lenght of
run
> from power supply.
>
>
> --- In CAD_CAM_EDM_DRO@egroups.com, "tauseef " <alieron@h...> wrote:
> > hey guys! thank you for the wonderful welcomes and its GREAT to
be
> a
> > part of this wonderful group!!
> >
> > Thanks for the tips and suggestons Ballendo and Tim (and others).
> >
> > I am not using the locking nut on the z-axis and have put the
> motors
> > on just as the instructions from sherline say, so that can't be
the
> > prob heheee. I tried last night to move the XYZ axis by hand and
> they
> > are smooth as silk :) I adjusted the Z axis also as suggested by
> > sherline and everthing works well. The motors are very new, my
> > brother bought them about 2 years ago in hopes to make a light
> > drill/engraving machine but never found the time to. Now that I
> have
> > the mill he "gave" me the motors to try. I just think they just
are
> > not strong enough.
> >
> > I am plannig right now to counterbalance the z axis as you guys
> have
> > mentioned. I always wondered about all that weight up front but
did
> > not want to "modifly" my new machine. Now that I have seen some
> pics
> > of it, its much eaiser :) I like the idea of putting the motor
> behine
> > the z-axis and then maybe I will add spings later. I can send
pics
> > but can someone tell me how I send them to the "file" folder?
> >
> > You mentioned that the 2amp power supply maybe buring out my 1amp
> > motors? Don't the motors draw as much amps as they need even if
you
> > give them a more amp power supply. If stalled will they not draw
> MAX
> > amps regardless of the powersupply?
> >
> > I spoke with Dan at camtronics and he suggested I use a 10 amp
> > powersupply for the 180 oz/in 2 amp motors I plan to use. Will
this
> > not cause the same problem? I do not doubt what Dan has said but
am
> > wondering.
> >
> > thanks again guys!
> > taus