[scheelman]

Hi
Just finished installing an Mkx-IV BOB on my LXM0609 router.

how do I make Auto Z probe work in mach3?. I can see in diagnostics it pull digitize pin when probe touch spindle. but if I click auto tool zero I get status "Not Yet Implemented"
and if I try using "automated setup of input" in ports and pins. I just get error "only works with parallel port lpt"

cannot find anything on youtube eg.

BR

[CitizenOfDreams]

If you see the "Digitize" signal changing on the diagnostics page, then you have your ports and pins configured correctly. Now you just need a script that does the probing.

Here is the script I use that zeroes the tool on top of the part. Go to Operator - Edit Button Script to assign the script to a button.

Dim Ztemp, SpeedCoarse, SpeedFine, SpeedRetract, MoveCoarse, MoveFine, RetractCoarse, RetractFine,TouchPlateHeight

SpeedCoarse=100
SpeedFine=10
SpeedRetract=300
MoveCoarse=-10
MoveFine=-0.8
RetractCoarse=0.2
RetractFine=5
TouchPlateHeight=0

If IsSuchSignal (22) Then

	Ztemp=GetOEMDRO(180)+MoveCoarse
	code "G31 Z" & Ztemp & " F" & SpeedCoarse
	While IsMoving()
	Wend
	
	Ztemp=GetOEMDRO(180)+RetractCoarse
	code "G00 Z" & Ztemp & " F" & SpeedRetract
	
	Ztemp=GetOEMDRO(180)+MoveFine
	code "G31 Z" & Ztemp & " F" & SpeedFine
	While IsMoving()
	Wend
	
	Call SetDRO(2,TouchPlateHeight)	
	
	Ztemp=RetractFine
	code "G00 Z" & Ztemp & " F" & SpeedRetract
	
End If

The variable names in the script are pretty self-explanatory, you can change speeds and probing distances as you like.
If you are using a touch plate (for nonconductive materials), assign the touch plate thickness to the TouchPlateHeight variable.

[scheelman]

works like a charm thanks a lot
I set TouchPlateHeight to 10mm
tog it took me a while to find out that RetractFine has to be higher that TouchPlateHeight

[CitizenOfDreams]

I guess line 29 should be changed to "Ztemp=RetractFine+TouchPlateHeight" to avoid that problem. I use a 1mm touch plate (just a brass washer really) so I never noticed. Thanks for the bug report!