If you're going for the cheap, and dont need to really cut anything more
than wax or foam, i would think some of these motors could do nicely for
less than $10 each.
http://www.allelectronics.com/cgi-bin/category/400600/Stepper_Motors.html
I think we could provide some better direction if we know exactly what
you're going for. you tryin to get your toes wet with cnc stuff, or are you
wanting to produce parts? what tools / supplies / resources do you have
available? if you happen to have access to say a school or employer's
machines, that could be very handy in building your machine. im assuming
you have at least bsic electronics skills if you're wanting to build those
stepper drives.
I've seen that instructables, and thought about trying something like that
but decided I'd come up with my own design using mostly MDF.
On Sat, Mar 1, 2008 at 8:28 PM, Dean Hedin <[EMAIL PROTECTED]> wrote:
> Sean,
>
> If your on a budget then go with one of the Allegro chipset based
> controllers (Hobbycnc etc..)
>
> Try to get motors that are rated at 2.5-3 amps (about the max
> that an Allegro chip can drive) and are rated around 3-5 volts.
> Also, make sure you run the highest voltage the controller can handle
> (usually around 36-42volts with an Allegro base controller).
> These means hunting down a good 30VAC 10 amp transformer.
>
> Don't waste your time or money with anything that is not a constant
> current, pwm type controller.
> There are schematics for Allegro based controllers to be found on the web
> if you want to roll your own.
>
> If you don't mind spending a bit more then go with the Geckos. You won't
> regret it.
>
>
>
> *From:* [EMAIL PROTECTED]
> *To:* emc-users@lists.sourceforge.net
> *Sent:* Friday, February 29, 2008 10:59 PM
> *Subject:* [Emc-users] home-mad CNC machine project.
>
> I was wondering if anyone has ever tried a do-it-yourself CNC project like
> this.
> http://www.instructables.com/id/Easy-to-build-CNC-Mill-Stepper-Motor-and-Driver-ci/and
> this
> http://www.instructables.com/id/Easy-to-Build-Desk-Top-3-Axis-CNC-Milling-Machine/.
> If so, any pointers or words of knowledge before I dive in?
> Also, I'm still looking for some stepper motors to use if anyone has a
> good source.. I'm a college student, so I'm obviously broke and starving.
> So, inexpensive would be good. Thanks guys.
>
> Sean
>
>
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