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Messages - tjpilson

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1
Daz, I went ahead and implemented your script on my machine with good results.  Thank you for the assist!  While I was getting some manual tool change success with the script I posted earlier in the thread (using the mc.mcCntlToolChangeManual), after the probe would run and the cycle start happened, every encounter of an I and J word would cause the machine to jump to unknown coordinates and make a sweeping arc.  I guess Mach was loosing it's incremental reference point as a result of the mc.mcCntlToolChangeManual operation.  Oh well, I'm abandoning that in favor of the mc.mcCntlCycleStop.

Now I just have to figure out how to get my Auto Tool Zero to function while in that mc.mcCntlCycleStop state.

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This is the exact scenario I'm trying to resolve as well.  (recently migrated from Mach3 > Mach4)  It worked exactly as described in Mach3.  On M6, machine would stop and prompt for a tool change.  I could manually jog the machine to a convenient/ad-hoc location of my choosing, change the bit, move the machine back to a location for zeroing against the workpiece, hit the "auto tool zero" button to reset Z height, and then hit "cycle start".  The machine would move to the next location and operations would resume.

Auto Tool Zero - button script/"left up" (adapted from Daz)
Code: [Select]
local TouchPlate = 0.1085 -- toolsetter height in inches
local StartHeight = 0.5 -- once probed, the final retract height

-- Initial Probe --
mc.mcCntlSetLastError(0, "Initiating probe with 2 touches");
AutoToolSetGcode = ""
AutoToolSetGcode = AutoToolSetGcode .. "G91 G31 Z-1.50 F4\n" -- initial move downward to probe
AutoToolSetGcode = AutoToolSetGcode .. "G91 Z0.125 F30\n"  -- retract
AutoToolSetGcode = AutoToolSetGcode .. "G91 G31 Z-1.00 F2\n" -- move down again, slower to probe
mc.mcCntlGcodeExecuteWait(0, AutoToolSetGcode) -- execute gcode

-- Set Z --
mc.mcCntlSetLastError(0, "Resetting Z axis");
mc.mcAxisSetPos(0, mc.Z_AXIS, TouchPlate) -- zero the Z axis
FinalPosition = StartHeight - TouchPlate
AutoToolSetGcode = ""
AutoToolSetGcode = AutoToolSetGcode .. string.format("G91 Z%.4f F30\n", FinalPosition)
mc.mcCntlGcodeExecuteWait(0, AutoToolSetGcode) -- move back
mc.mcCntlSetLastError(0, "Probe complete");

-- Message Box --
wx.wxMessageBox("Z Height Set, Remove TouchPlate")

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