Re: [CAD_CAM_EDM_DRO] Re: Bit-definitions of Parallel-port to run home-brew CNC stuff

Hi Jan, Jeff,

This is what I'm using (from MaxNC):

* 1 m3 output, M3_OUTPUT_PIN
*
* 2 X step
* 3 X dir
* 4 Y step
* 5 Y dir
* 6 Z step
* 7 Z dir
* 8 A step
* 9 A dir
*
* 10 limit sw pos, LIMIT_SW_POS
* 11 input for m6, M6_INPUT_PIN (tool change)
* 12 limit sw neg, LIMIT_SW_NEG
*
* 13 G31 switch, G31_SW_SENSOR
*
* 14 m4 output, M4_OUTPUT_PIN
* 15 nc input, ESTOP_SW
* 16 m7 output, M7_OUTPUT_PIN
* 17 m8 output, M8_OUTPUT_PIN
*
* 18 all sig ground, 19-25 nc
*

M3 controls the spindle SSS. G31 reads the probe. See the Schematic I
posted under DriverPS.

http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/DriverPS/

Alan KM6VV


jeffalanp wrote:

>
> Hi Jan,
> When I designed the Xylotex board, I went with the configuration
> that MaxNC used, starting with XStep-pin 2,XDir pin 3,...
> I also added a connector with their three inputs (+lim, -lim, and
> probe), along with a GND (probably should have thrown in a +5V on the
> connector too but...
>
> Jeff
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Jan Rowland" <JanRwl@A...>
> wrote:
> > Anyone who knows: Is there (yet) an "industry standard" specifying
> > which bits of the parallel (printer-) port are for STEP X, DIR X,
> > STEP Y, DIR Y, STEP Z, DIR Z, SPINDLE ON/OFF, WHATEVER? Thanks!
> > Jan Rowland
>