Mesa 7i76e with G540

Just to provide some closure for those who read this in the future. I noticed Pncconf has a checkbox to invert the direction. This changed the sign of the SCALE value in the ini file. So, you could just manually edit your ini file and add a negative sign before the scale value for each axis.

Alternately, I read you can use ".invert_output" to change the sign of the direction parameter in the hal file. I didn't try that method, but other threads here discuss it.

I also setup the charge pump. Using Pncconf, I enabled the 5th stepgen on the 7i76e and selected Charge Pump from the drop down menu. To connect it to the G540 I ran a wire from the G540 (DB25 - pin 16) to the 7i76e (TB3 - Pin 3). That is the STEP4+ signal. I tied in TB3 - pin 1 with the other stepgen grounds (TB2 - pins 1,7,13,19).

Hello -- I plan to run a machine with the G540 (a zenbot NC router). I would LOVE IT if you could send me a link to file share or something with your config files in it so that I could be up and running quickly. I know how much work this can be and would SO appreciate the shortcut. ALSO -- Would it be possible for you to show how you connected everything together? A few quick pics would be fine. I can work out the details if needed. I can make up all sorts of wacky cables to make this happen, but I am hoping that you came up with something simple and clever. Thank you very much!

I have started a new thread for this specific machine here.