How to add Touch Probe

[Wingnuts]

done some searching but can't find info on how to attach a touch probe to gecko 540 from Mach 3

found the blue screen with probe on mach site and downloaded it and thats as far as i get

[Wingnuts]

Hmmm no one using a touch off plate on their G540,,,

[Vermiculite]

I have one but using EMC2 not Mach3 so I am not much help to you. I am assuming you have already done so but if you need to wire it up you can get some diagrams from Geckodrive. Surely somebody will be able to help you.
All the best
Verm

[rowbare]

I would have to take my control box apart to be absolutely sure but as I remember it was trivial. I installed a pair of banana jacks in the front panel of my control box, one is connected to an input on the G540 which is appropriately mapped in Mach and the other is connected to the G540 ground.

Have you seen this thread? XYZ Probe modification

bob

[Wingnuts]

Thanks

after reading some posts here, looks like input 13 on the 540 and then a ground

just have to find the right script now

[fretsman]

This the script I've been using for Mach3 from here at the Zone:

This is inches and you can set some of the variables as you would like them to be set.

As always, take care when using scripts as you must use these at your own risk.

Dave


CurrentFeed = GetOemDRO(818) 'Get the current feedrate to return to later
CurrentAbsInc = GetOemLED(48) 'Get the current G90/G91 state
CurrentGmode = GetOemDRO(819) 'Get the current G0/G1 state
PlateThickness = GetUserDRO(1151) 'Z-plate thickness DRO
If GetOemLed (825)=0 Then 'Check to see if the probe is already grounded or faulty
DoOEMButton (1010) 'zero the Z axis so the probe move will start from here
Code "G4 P2" ' this delay gives me time to get from computer to hold probe in place
Code "G90 G31Z-20 F10" 'probing move, can set the feed rate here as well as how far to move
While IsMoving() 'wait while it happens
Wend
ZProbePos = GetVar(2002) 'get the axact point the probe was hit
Code "G0 Z" &ZProbePos 'go back to that point, always a very small amount of overrun
While IsMoving ()
Wend
Call SetDro (2, PlateThickness) 'set the Z axis DRO to whatever is set as plate thickness
Code "G4 P0.25" 'Pause for Dro to update.
Code "G1 Z.250 F60" 'put the Z retract height you want here
While IsMoving ()
Wend
Code "(Z axis is now zeroed)" 'puts this message in the status bar
Code "F" &CurrentFeed 'Returns to prior feed rate
Else
Code "(Z-Plate is grounded, check connection and try again)" 'this goes in the status bar if aplicable
End If
If CurrentAbsInc = 0 Then 'if G91 was in effect before then return to it
Code "G91"
End If
If CurrentGMode = 0 Then 'if G0 was in effect before then return to it
Code "G0"
End If
Exit Sub

[Wingnuts]

Thanks

will give it a try