Re: Stepper control w/o a computer?????

Any suggestions on what kind and where to get 300 in/oz steppers
that will not break the bank. I see a few on ebay I might try...


Jerry

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Tim Goldstein" <timg@k...>
wrote:

> If you look in the files section of this group there are a few

circuits that

> will generate step signals to do what you want. If you use a proven

existing

> CNC control program you can skip the power feed step and not worry

about

> computer bugs.
>
> For a mill drill unit 125 oz/in motors would be very weak. Most

people use

> 300 + for a mill drill unit and would use 125 oz/in or bigger

motors for a

> Sherline or Taig.
>
> Tim
> [Denver, CO]
> Sherline products at Deep Discount
> Mach1 & DeskCNC with Credit Card ordering
> www.KTMarketing.com/Sherline
> www.KTMarketing.com/DeskCNC
>
>
> ----- Original Message -----
> From: <jerry@o...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Thursday, January 02, 2003 10:20 AM
> Subject: [CAD_CAM_EDM_DRO] Stepper control w/o a computer?????
>
>
> > Well I'm on my way to learning all this CNC stuff.
> > I would like to convert my Drill/Mill to CNC. I read as much as I

can

> > on the subject. This group is great.
> > I would like to know is there a way to control stepper motors with
> > out useing a computer. ie a box that would send step/dir signals

to

> > the motor? Waht I'm thinking is to get the steppers and build a

power

> > feed setup first then add the computer control later.
> > That way I canget the bugs out of the mechs then move on to the
> > computer side. Does any one have any suggestions on stepper motor
> > size. I was thinking of stepper motor that have at least 125in/oz

of

> > torqe. would this be enough of do I need to look at bigger?
> >
> >
> > thanks
> >
> >
> > Fozzyber
> >
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/