Quote from MASSO Support on January 4, 2020, 10:25 am
Hi @buckmaster1967
Can you share the start of the Gcode file where the Z axis drives up. I think you will find that there is a G38.2 probing cycle causing the issue.
https://www.masso.com.au/masso-documentation/?section=g38-2-straight-probe-cycle
Please be aware that the Z value specified is a machine coordinate value and not a working coordinate which may be your problem with that.
With regards the hunting are you 100% sure you have the up and down around the right way because i imagine that that would make it hunt something wicked.
Could you also do a simple test. Move your Z axis to the center of it's travel and zero the Z axis. Then type G00 Z-1 and make sure the Z axis moves down. I assume you are using imperial otherwise use G00 Z-25.
If the axis moves up you have it configured backwards which will also be a problem and cause hunting.
Cheers
Peter
Hello,
(Could you also do a simple test. Move your Z axis to the center of it's travel and zero the Z axis. Then type G00 Z-1 and make sure the Z axis moves down. I assume you are using imperial otherwise use G00 Z-25.) I did the test, and the Z axis moved down like it supposed to.
So, with out the HTC, the table cuts great. Cut out a 4ft x 3ft sign last night. Everything worked great. Except the Z axis .It goes to park and stays down when it is when the job is done. Blow water from my table. Sheetcam says to park all axis at (0).
Using the MASSO post processor with THC, I can get the Price Controller to to pierce the metal and start to cut, than raises about an inch above the metal and start to hunt, which I can calm down by adjusting the tolerance on the controller. It will quit hunting, but remain an inch above the metal. Not sure why it won't go to .06" like the setting in Sheetcam.
If I use the plasma AVHC10 post processor, as soon as I hit start, the Z Axis moves up and hits the limit. I found that it is going by the setting in the Sheetcam Job Options where the Rapid Clearance is set to ( 1.5" ) causing the axis to go from Home at 0 to 1.5. The Masso Post Processor , using the same settings goes to 1.5 after the torch goes down and touches the metal zeroing the Z axis then moving up to 1.5"
function OnAbout(event)
ctrl = event:GetTextCtrl()
ctrl:AppendText("plasma AVHC10 post processor\n")
ctrl:AppendText("\n")
ctrl:AppendText("Modal G-codes and coordinates\n")
ctrl:AppendText("Comments enclosed with ( and )\n")
ctrl:AppendText("M03/M05 turn the torch on/off\n")
ctrl:AppendText("Incremental IJ\n")
ctrl:AppendText("The torch is referenced at cut start and every 500mm of movement thereafter\n")
ctrl:AppendText("Designed for use with Mach3 and PriceCNC AVHC10\n")
ctrl:AppendText("Post variables:\n")
ctrl:AppendText("refdistance - set the distance between each reference\n")
end
-- revision 3/2/07
-- Removed final safety move. This is now done in SheetCam
-- revision 7/10/05
-- Added new arc handling
-- created 27/10/04
-- Based on plasma1.post
function OnInit()
post.SetCommentChars ("()", "[]") --make sure ( and ) characters do not appear in system text
post.Text (" (Filename: ", fileName, ")\n")
post.Text (" (Post processor: ", postName, ")\n")
post.Text (" (Date: ", date, ")\n")
if(scale == metric) then
post.Text (" G21 (Units: Metric)\n") --metric mode
else
post.Text (" G20 (Units: Inches)\n") --inch mode
end
post.Text (" G53 G90 G40\n F1\n S500\n")
switchoffset = 0.752
bigarcs = 1 --stitch arc segments together
minArcSize = 0.05 --arcs smaller than this are converted to moves
end
function OnNewLine()
post.Text ("N")
post.Number (lineNumber, "0000")
lineNumber = lineNumber + 10
end
function OnFinish()
post.Text (" M05 M30\n")
end
function OnRapid()
if(math.hypot(endX-currentX , endY-currentY) < 0.001 and endZ < currentZ) then return end
post.ModalText (" G00")
post.ModalNumber (" X", endX * scale, "0.0000")
post.ModalNumber (" Y", endY * scale, "0.0000")
post.ModalNumber (" Z", endZ * scale, "0.0000")
post.Eol()
end
function OnMove()
post.ModalText (" G01")
post.ModalNumber (" X", endX * scale, "0.0000")
post.ModalNumber (" Y", endY * scale, "0.0000")
post.ModalNumber (" Z", endZ * scale, "0.0000")
post.ModalNumber (" F", feedRate * scale, "0.0###")
post.Eol()
end
function OnArc()
if(arcAngle <0) then
post.ModalText (" G03")
else
post.ModalText (" G02")
end
post.NonModalNumber (" X", endX * scale, "0.0000")
post.NonModalNumber (" Y", endY * scale, "0.0000")
post.ModalNumber (" Z", endZ * scale, "0.0000")
post.Text (" I")
post.Number ((arcCentreX - currentX) * scale, "0.0000")
post.Text (" J")
post.Number ((arcCentreY - currentY) * scale, "0.0000")
post.ModalNumber (" F", feedRate * scale, "0.0###")
post.Eol()
end
function OnPenDown()
post.ModalText(" G31 Z -100")
post.ModalNumber (" F", 500 * scale, "0.0###")
post.Eol()
post.ModalText(" G92 Z0.0\n")
post.ModalText (" G00")
post.ModalNumber(" Z", switchoffset, "0.0752")
post.Eol()
post.ModalText(" G92 Z0.0\n")
post.CancelModalNumbers()
post.ModalText (" G00")
post.ModalNumber (" X", endX * scale, "0.0000")
post.ModalNumber (" Y", endY * scale, "0.0000")
post.ModalNumber (" Z", pierceHeight * scale, "0.0000")
post.Eol()
post.Text ("\n M03\n")
if (pierceDelay > 0.001) then
post.Text (" G04 P")
post.Number (pierceDelay,"0.###")
post.Eol()
end
end
function OnPenUp()
post.Text (" M05\n")
if (endDelay > 0) then
post.Text (" G04 P")
post.Number (endDelay,"0.###")
post.Eol()
end
end
function OnNewOperation()
post.Text (" (Process: ", operationName, ")\n")
end
function OnComment()
post.Text(" (",commentText,")\n")
end
function OnToolChange()
post.Text (" M06 T")
post.Number (tool, "0")
post.Text (" (", toolName, ")\n")
end
function OnNewPart()
post.Text(" (Part: ",partName,")\n");
end
function OnDrill()
OnRapid()
OnPenDown()
endZ = drillZ
OnMove()
OnPenUp()
endZ = safeZ
OnRapid()
end
Without doubt, my ignorance of the subject in my biggest issues. I really appreciate all input. Learning everyday, but miles to go.
