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IndustryArena Forum > CAM Software > SheetCam > sheetcam post with tool offset
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  1. #1
    Join Date
    Sep 2007
    Posts
    19

    sheetcam post with tool offset

    ok has anybody had success with the mp1000-dthc.scriber post. i am having a hard time setting the offsets in the post. i have set the offsets but the engraver is still not set with the offset that its at in relation to the plasma torch. i have included the post to see were im going wrong. i would also like to install a pause at m08 for a second or two. any help would be great. thanks

    function OnAbout(event)
    ctrl = event:GetTextCtrl()
    ctrl:AppendText("plasma MP1000-THC post processor with engraver\n")
    ctrl:AppendText("Tools 100 and up are the engraver\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("M08/M09 turn the engraver on/off\n")
    ctrl:AppendText("Incremental IJ - set in mach2\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")
    ctrl:AppendText("Post variables:\n")
    ctrl:AppendText("refdistance - set the distance between each reference\n")
    ctrl:AppendText("switchoffset - set your net switch offset amount \n")
    ctrl:AppendText("\nScriber uses tool numbers 100 and up")
    end



    -- created 1/1/06
    -- Based on plasma1.post



    function OnInit()

    offX = 0
    offY = 0
    offZ = 0


    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")
    minArcSize = 0.2 --arcs smaller than this are converted to moves

    dist = 9999999
    refdistance = 10* scale

    --Put your switch offset value here
    switchoffset =.260
    lastz = 0

    --Scriber X,Y,Z offsets
    scriberX = -4.803
    scriberY = -.250
    scriberZ = 2.

    end

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


    function OnFinish()
    endZ = 2.0
    OnRapid()
    endX = 0
    endY = 0
    OnRapid()
    post.Text (" M05 M30 G28\n")
    end

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

    function OnMove()
    dist = dist + math.hypot((endX + offX)-currentX , (endY + offY)-currentY)
    post.ModalText (" G01")
    post.ModalNumber (" X", (endX + offX) * scale, "0.0000")
    post.ModalNumber (" Y", (endY + offY) * scale, "0.0000")
    post.ModalNumber (" Z", (endZ + offZ) * scale, "0.0000")
    post.ModalNumber (" F", feedRate * scale, "0.###")
    post.Eol()
    end

    function OnArc()
    dist = dist + math.hypot((endX + offX)-currentX , (endY + offY)-currentY)
    if(arcAngle <0) then
    post.ModalText (" G03")
    else
    post.ModalText (" G02")
    end
    post.ModalNumber (" X", (endX + offX) * scale, "0.0000")
    post.ModalNumber (" Y", (endY + offY) * scale, "0.0000")
    post.ModalNumber (" Z", (endZ + offZ) * 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(tool > 100) then
    post.Text(" M08\n")
    return
    end
    if(dist >= (refdistance/scale)) then
    dist = 0
    -- modaltext (" G00")
    -- text(" Z")
    -- number (pierceheight * scale, "0.0000")
    -- eol()
    post.ModalText(" G28.1 Z")
    post.Number(3 * scale, "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()
    if(tool > 100) then
    post.Text(" M09\n")
    return
    end
    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()
    if (tool > 100) then
    offX = scriberX
    offY = scriberY
    offZ = scriberZ
    else
    offX = 0
    offY = 0
    offZ = 0
    end
    end

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

    function OnDrill()
    OnRapid()
    OnPenDown()
    endZ = drillZ
    OnMove()
    OnPenUp()
    endZ = safeZ
    OnRapid()
    end

  2. #2
    Join Date
    Jun 2010
    Posts
    0
    i need helpe. when i laod my DXF to sheetCam and post it to mach3, some of the drwing in mach3 apeare missing( some of parts are missing)

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