[SatanKlawz]

Howdy again! its been a while and Ive got a new obstacle Im trying to overcome. Im trying to add a rotary axis to my DIY machine, Let me give yall the rundown of what I have and what I am thinking and yall can help me from there.

My 3 axis machine is using g540 / uc100 / mach 3 and currently has the "A" axis slaved to the "Y" stepper for dual lead screws on the Y axis. This obviously uses up all 4 outlets on the G540. I am very happy with the machines current performance and setup and am not looking to overhaul my motion control setup.







I was poking around trying to see if it was going to be possible at all to achieve what I am wanting and someone had recommended to put this....



https://czh-labs.com/czh-labs-din-ra...RoCtjAQAvD_BwE

... in between the uc100 and the g540. This would allow me to tap the pins before it gets to the g540 and I could add a single g250x or g251x driver for the rotary axis. I could then create a profile in mach just for the rotory in mach when I want to use it.

Any ideas?

[vger]

Yes that should allow you to tap off and isolate 2 pins for step and dir for the 4th axis, as well as tapping into an enable pin if used. Nice looking machine!