Re: is this a good deal ?

Hi Jon,

I guess was I was saying was is a 1.7 VDC as good as/better than a 4
volt. 4 v times 20 = 80 volts for the power supply. I can't get
past that 20x the nameplate voltage for best performance.


I was looking at a plasma table last week, but I had gone about the
design the wrong way. I should have figured out the need first, then
the machine to fill that need.

With the help of the group, I realized that I can make the parts I
need just as easily with a router.

I designed a router table, 12" x 14". I will be using a vacuume
table to hold the parts and rough the parts out with my nibbler, then
do the contour with the router.

Figure 1/4 inch deep cut on 0.08" aluminum, possibly one rough cut,
one finishing cut.

I really only need X and Y since I will not need to plunge into the
part.

The plasma cutter is still desired, but not immeadiate. I really
need to get this project done, but I also really want to just lay a
sheet and cut all the parts with no manual intervention.

as for costs, the NEMA 34's are $35.00 ea which is close to what e-
bay sells them.

Dave

--- In CAD_CAM_EDM_DRO@y..., Jon Elson <elson@p...> wrote:
> dave_ace_me wrote:
>
> > I have an opportunitiy to get a couple Slo-Syn motors,
> >
> > NEMA 34 1.7 VDC 4.7 amps.
> >
> > I know that Marriss says to power steppers 20X their rating, and
that
> > the highest voltage offers more torque, but.... 20x 1.7 is only
34
> > volts.
> >
> > Will these yield good delivered power or should I keep looking ?
>
> Good deal for what? A Sherline, or a Bridgeport? Do you need high
> rapid feeds or heavy torque to drive the machine? Or, is it for
> a router? Plasma torch?
>
> We just can't comment without knowing what you want to use them
> for.
>
> Jon