Page 1 of 1

Where is the "One-Pager" for Spindle Control?

Posted: Sat Dec 19, 2015 2:06 am
by mankyd
I have seen in several places mention of a one-pager for doing spindle control with the 6 pins on the left side of the board. Is that ever coming?

http://www.shapeoko.com/wiki/index.php/ ... trol_board
http://www.shapeoko.com/forum/viewtopic ... 203#p46203 (says it's the 6 pins on the right)
http://www.shapeoko.com/forum/viewtopic ... 410#p45370 (says it's the 6 pins on the left)

Re: Where is the "One-Pager" for Spindle Control?

Posted: Sat Dec 19, 2015 2:19 am
by RoguePirin
I don't know when that page is coming. I ended up reverse engineering the pinout. I hope that helps.

Re: Where is the "One-Pager" for Spindle Control?

Posted: Sat Dec 19, 2015 8:02 am
by Estlcam
Hi,

have a look here (from here: http://www.shapeoko.com/forum/viewtopic ... 0&start=10):
interface_s.jpg
interface_s.jpg (73.36 KiB) Viewed 971 times
Its the header next to the power jack - not the one close to the USB port - also note that the board is upside down.

This is Estlcams "GRBL PWM" pin layout - there is a subtle difference to GRBL 0.9 with PWM enabled:
Estlcams "on / off" (top / center) pin is "spinde direction" for GRBL. GRBL itself only offers either on / off or PWM but not both at the same time.

Re: Where is the "One-Pager" for Spindle Control?

Posted: Sat Dec 19, 2015 2:58 pm
by RoguePirin
Estlcam wrote:GRBL itself only offers either on / off or PWM but not both at the same time.
That's not exactly true. If you recompile the GRBL code, you can repurposed the spindle direction pin to be used as the spindle on/off signal. The PWM pin is separate. See my link above.

Re: Where is the "One-Pager" for Spindle Control?

Posted: Mon Dec 21, 2015 6:14 pm
by mankyd
Awesome. After recompiling GRBL with the changes documented here, I now have gcode spindle control. Thanks!