Re: Stepper size?

Tim,

So if I am to understand, you are saying that since a Sherline is a
metal cutting mill and it uses a 125-150 in/oz steppers that the
steppers that I am looking at would tend to be in the ball park for my
application. Remember, I will be cutting machinable wax, high-density
fiber board and perhap light cuts in aluminum. My table will be made
out of cabinet grade ply, 24" X 30". Very light weight.

--- In CAD_CAM_EDM_DRO@y..., "Tim Goldstein" <timg@k...> wrote:
> A Sherline sized mill seems to need something in the 125 - 150 in/oz
range
> for decent performance. My Shoptask was functional, but far from
spectacular
> with 250 in/oz motors and was pretty decent with 550 in/oz units. My
guess
> is that 125 would not be adequate for your task.
>
> Tim
> [Denver, CO]
>
> > -----Original Message-----
> >
> > I am in the process of designing my XYZ table. I am interested in
> > routing machinable wax for use with my casting furnace, light wood
> > routing and perhaps (light) engraving aluminum. Not very deep cuts in
> > the aluminum.
> >
> > I am trying to figure out a decent size stepper motor to use. I came
> > accross a few on the net in the 125 oz/in model, one is a Size 23
> > ($40)Vexta PK226-02A, 200 s/r 3.6v@2A
> > and the other is a Size 34 ($25 used)125oz 2.5v@2... 200 s/r(steps per
> > rev).
> >
> > My table is what will be moving, made out of 3/4" cabinet grade ply,
> > 24" * 30". What would be the recommended size based on my application?
> >
> > The over head gantry will house a Dewalt 1/4" laminat trimmer, not
> > much weight.
> >
> > Anybody have an opinion on these types of stepper or do you have
> > another source I could look at?
> >
> > Thanks.
> >
> >
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/