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Messages - schweißer

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1
G-Code, CAD, and CAM discussions / Sheetcam postprocessor
« on: February 10, 2014, 06:26:38 AM »
Hello,

i need help with postprocessor for sheetcam and Mach3.

This is my postprocessor


function OnAbout(event)
   ctrl = event:GetTextCtrl()
   ctrl:AppendText("Plasma MP1000-THC -ZRef post processor\n")
   ctrl:AppendText("Use with floating head (auto touch off) ONLY\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 - set in mach3\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 CandCNC MP1000-THC and Floating head Touch-n-Go\n")
end


--Post variables:

--refdistance - sets the distance between each reference (default is 500mm)
--switchoffset - sets your net switch offset amount (actual measured switch offset on your table)
--zrefslowdown - sets your distance that the Z uses ref-speed on the touch off.  If larger than the Rapid Height it uses Rapid Height


--   modified 10/05/07 by Tom Caudle
--   Based on plasma1.post



function OnInit()
   bigarcs = 1 --stitch arc segments together
   minArcSize = 0.05 --arcs smaller than this are converted to moves

   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")
--NOTE:  Variable numbers below are in MM and are converted to INCHES by the scale factor
   dist = 9999999
   refdistance = 500 * scale
   zrefslowdown =12.7 * scale
--Put your switch offset value here
   switchoffset =.090
   lastz = 0
if(zrefslowdown > safeZ * scale) then
 zrefslowdown = safeZ * scale
end
end

function OnNewLine()
   post.Text ("N")
   post.Number (lineNumber, "0000")
   lineNumber = lineNumber + 10
end


function OnFinish()
   endZ = safeZ
   OnRapid()
   endX = 0
   endY = 0
   OnRapid()
   post.Text (" M05 M30\n")
end

function OnRapid()
   dist = dist + math.hypot(endX-currentX , endY-currentY)
   post.ModalText (" G00")
   post.ModalNumber (" X", endX * scale, "0.0000")
   post.ModalNumber (" Y", endY * scale, "0.0000")
   post.ModalNumber (" Z", safeZ * scale, "0.0000")
   post.Eol()
end

function OnMove()
   dist = dist + math.hypot(endX-currentX , endY-currentY)
   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()
   dist = dist + math.hypot(endX-currentX , endY-currentY)
   if(arcAngle <0) then
      post.ModalText (" G03")
   else
      post.ModalText (" G02")
   end
   post.ModalNumber (" X", endX * scale, "0.0000")
   post.ModalNumber (" 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()
   if(dist >= (refdistance/scale)) then
      dist = 0
--      modaltext (" G00")
--      text(" Z")
--      number (pierceheight  * scale, "0.0000")
--      eol()
      post.ModalText(" G28.1 Z")
      post.Number(zrefslowdown, "0.00")
      post.Eol()
      post.ModalText(" G92 Z0.0\n")
      post.ModalText (" G00")
      post.Text(" Z")
      post.Number (switchoffset, "0.0000")
      post.Eol()
      post.ModalText(" G92 Z0.0\n")
      post.ModalText (" G00")
      post.Text(" Z")
      post.Number (pierceHeight  * scale, "0.0000")
      post.Eol()
   else
      post.ModalText (" G00")
      post.Text(" Z")
      post.Number (pierceHeight  * scale, "0.0000")
      post.Eol()
   end
   if (preheat > 0) then
      post.Text ("\n G04 P")
      post.Number (preheat,"0.###")
      post.Eol()
   end
   post.Text ("\n M03\n")
   if (pierceDelay > 0) 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")
   if (plungeRate <= 0) then
      post.Warning("WARNING: Plunge rate is zero")
   end
   if (feedRate <= 0) then
      post.Warning("WARNING: Feed rate is zero")
   end
end

function OnToolChange()
   post.Text (" M06 T")
   post.Number (tool, "0")
   post.ModalNumber(" F",feedRate * scale,"0.#")
   post.Text ("  (", toolName, ")\n")
end

function OnNewPart()
   post.Text(" (Part: ",partName,")\n");
end



The problem is the "The torch is referenced at cut start and every 500mm of movement thereafter"

The torch should references on all cut starts. 
how do I have to change the post processor?

Best Regards,




2
Hello,

this video is not bad.
but some information is missing.

1. Which cam he used?
2. Which post postprocessor example sheetcam? or that's actually important for THC?
2.1 I have the the problem at the start. shweet offset with THC ZRef is okay but if M03(Plasma flame not start) i must I have to press restart. it would be better if m03 is not on, it automatically repeats the offset.
3. On my thc proma light all light? i change the signals, but mach3 wright the problem "please clear the THC signal". What ist the problem?

Best Regards,


3
hello,
sorry I'm new and have a few questions about my settings
you find attached my mach3 configs. my cam system is sheetcam

1. why does not thc?
2. what sheetcam post processor i need for the floating head and thc?

i need about all informations they have.
I am looking for 4 weeks on the internet but can not find anything.

Please help me.

Best Regards,

4
i need the same information

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