Pathpilot 4th axis

Unfortunately, I have not. I had it wired up and could move the 4th axis by using the keyboard to jog but it would only turn in one direction. I got frustrated and gave up. A friend with a similar setup confirmed I should be seeing the proper step and direction signals so I will try again soon. Thank you for asking and all the help. I’ll be back soon with more questions, I think.

If you can only move in one direction, this suggests that the current firmware loaded in the 5I25 does not match your breakout.

This is easy to check with LinuxCNC using mesaflash, not sure if Pathpilot makes mesaflash easy to get to or not...

In linuxcnc you would type (in a terminal window):

sudo mesaflash --device 5i25 --readhmid > my_weird_pinout.txt

and then look at the created text file to see the current firmwares pinout