Messages

1

General Mach Discussion / Re: Help with Plasma G31 Probe On Floating head

« on: April 04, 2017, 06:39:54 PM »

With further research:

Some post say that a limit switch has been used as a probe...


Will a proxy work as a probe? So as to be activated on touch-off?

2

General Mach Discussion / Re: Help with Plasma G31 Probe On Floating head

« on: April 04, 2017, 06:21:00 PM »

Hi all,

Brand new to the Mach scene.

I am busy setting up my CNC-Plasma and ran into a few hold-ups.

Specs: 2x Nema 34`s on y-axis, 1x Nema 34 on x-axis, 1x Nema 23 on z-axis. Proximity switches (NC; PNP 3-wire) for over-runs and homes. Mach3 Licensed, Sheetcam Licensed.

I got the y- and x- axis to work as required (I think), moving according to Mach`s Axes layout and homing correctly (again, I think).


My problem is with the z-axis, to get it to touch the material.
I have a NC Proxy installed so that when the floating head is in normal position, the proxy is open, so on moving downward (touch off), it will close.
According to what I understand from this thread, the touch-off proxy should be set as Z-home? Is that correct?

If so, then how will the Z-axis retract to the top (lets call it normal home) as to be out of the way when the gantry is homing?


Any help will really be appreciated.