Hi Mark,

Check out 

http://groups.yahoo.com/group/E-LeadScrew/

For the running banter on this project.  The source code and schematics for
a simple serial port based version is also on that site and on the November
06 Circuit Cellar Magazine Archives.

And yes, the 7x8,10,12,14" lathes along with lathes like older South Bends
etc.  I've added stepper motors to a home built Gingery Lathe and can now
use it to cut an MT2 taper that's a good fit the first time not to mention
both metric and imperial threads.

Even if not used for an ELS, the board will be useful for a wide variety of
other projects.  I plan on writing code to make it into a back fence
controller for my sheet metal shear/brake.  One stepper, a home switch and
menu's with metal thickness info should, if all goes well, let me fold metal
correctly without a lot of mistakes.  In addition to the features below it
also has room for a CAN bus driver and RS232.  Uses PIC18F4680.

John Dammeyer


> >
> > In essence the board has a 2 line LCD display, 34 buttons, 
> quadrature encode
> > knob, 1 analog input and a 3 Amp 55V micro-stepper motor 
> driver.  Schematics
> > and gerbers will also be published.  However, people who 
> want to modify it
> > or upgrade it would have to buy the Microchip C so I'm just 
> looking for a
> > lower cost alternative.
> >
> > John Dammeyer
> 
> Is this be sized for the 7" Chinese lathes?  I might be interested to
> build this.  If I do,  I would do an SDCC port, since M'chip C isn't
> supported on my computer.
> 
> Regards,
> Mark
> markrages
> -- 
> You think that it is a secret, but it never has been one.
>   - fortune cookie
> -- 
> http://www.piclist.com PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
> 
> 


-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist