PRC_cut1_en.htm

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    Process PRC_cut1
    PRC_cut1 is a 2.5-D NC-Processor,

    Postprocessors: G-Code and others (optional).

    ____________________________________________________________________________
    Basics
    Toolcommands
    Processing_functions
    Z-Axis-Control
    Auxiliary_functions
    Example

    Postprocessor G-Code
    GCAD3D-APT

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    Basics

    -) Create all geometric objects to be processed with mode CAD or MAN

    -) Create new process: select "Process/CreateProcess",
      modify proposed Processname "proc1",
      select Processor "PRC_cut1"
      select "OK"

    -) Activate process:
      in browser-window, select proc1 with right mousebutton "aktivate".

    -) Define startposition:
      in grafic-window, right mousebutton: "FROM";
        (in edit-window "FROM" is displayed)
      in grafic-window select point with left mousebutton (eg P27)
        (in edit-window the point is added)
      Finish line:
        in grafic-window, right mousebutton: "OK" or
        in edit-window with enter-key.

    -) Define rapid-movement:
      in grafic-window, right mousebutton: "RP";
      in grafic-window select point with left mousebutton (eg P23)
      Finish line.
        (in edit-window "RP P23" is displayed)

    -) Define machining-commands:
      in grafic-window, right mousebutton: "GO";
      in grafic-window select a grafic object (line, circle curve)
        with the left mousebutton (eg S21)
      Finish line.
        (in edit-window "GO S21" is displayed)

    -) Start postprocessor:
      in toolbar "PRC_cut1" (below grafic-window,) select postprocessor "G-Code"
      This creates the APT-Code (file ~/gCAD3D/tmp/nc.apt) and the NC-program
        (file ~/gCAD3D/tmp/nc.iso).

    -) Exit: select button "Exit" in toolbar "PRC_cut1".

    Do not remove line "PROCESS {prozessName} PRC_cut1" !
    Most NC-Commands (STOP FED COOL INSERT ..) have to be entered with the keyboard.
    Associated geometrical objects (points, outlines) can be selected.
      Conclusion with RETURN key or right mouse button.
    At each time one can re-establish each programstate with the cursor key up/down.

    See also: Using_the_editor

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    Toolcommands
    TL 0
      unload tool.

    TL 1
      toolchangecommand (with toolnumber).
      No definition: default "TL 1" is used.

    TEC toolNr radius [height]
      Definition of tool-radius and tool-length.
      Tool-radius and tool-length are used for display.
      radius (tool-radius-radius); Angabe 0: facial-surface is not displayed.
      height (tool-length); keine Angabe: processing-path is not displayed.

    TCPOS toolChangePosition
      Does before toolChange:
        retract at CLEAR-plane, move to toolChangePosition.

    Example:
    # Tool 1: Radius=10, length=50.
    TEC 1 10 50
    # Tool 2: Radius=0; display path as line, not as surface:
    TEC 2 0

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    Processing_functions

    FROM FromPosition
      Set the given position as startpoint.
      This instruction should only be given once in a process.
      Example:  "FROM 100,100" or "FROM P20"
      Output: "FROM koordinaten"
      Display: a triangle.

    RP Position
      rapid-movement absolut.
      Output: "RP", "G1 coordinates"
      Display: without tool: yellow line; with tool: red line.

    RPR X-distance,Y-distance[,Z-distance]
      rapid-movement relativ.
      Example: "RPR 100 0"
      Output: "RP", "G1 coordinates"

    GO Geom.Obj
      Machining. Define one ore more geometric objects (lines, circles, curves).
      Example: "GO P10 L20 S20"
      Output: G1- or G2- or G3-records.
      Display: surface or blue linie/curve (if Radius is 0)

    ____________________________________________________________________________

    Z-Axis-Control

    ZSUR1
      Z-level of machining surface
      For all machining-movements this value is used.

    CLEAR
      Safety-distance (Clearence).
      For all RAPID-movements this value is used.

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    Auxiliary_functions

    INL
      INSERT. Text will be copied into the NC-program.
      Example: key "INL M00".

    COOL ON / OFF
      Coolant.
      Will be copied into the NC-program.

    FED
      Will be copied into the NC-program.

    STOP
      Will be copied into the NC-program.
      STOP      - for M00
      STOP 1    - for M01

    Auxiliary functions are displayed at the corresponding position.

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    Example

    Example Process cut1:

    Load model sample_PRC_cut1_1.gcad (File/OpenModel "sample_PRC_cut1_1.gcad")

    Activate procDemo1 ("procDemo1","activate" in browser with right mousebutton)

    Start prozessor (select Postproc. "G-Code") in toolbar below;

    Check output-file ~/gCAD3D/tmp/nc.apt (filename see info-window below);

    finish with Button "Exit" in toolbar.

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    GCAD3D-APT
    APT-Code, created by processor PRC_cut1.
    Is written into file ~/gCAD3D/tmp/nc.apt.
    The postprocessors read this file.

    Postprozessor G-Code
    Creates the NC-program in file ~/gCAD3D/tmp/nc.iso.

    GCAD3D-APT                     G-Code

    $$ Kommentar                   -
    FROM {position}                G92 {position}
    RP                             -
    G1 {position}                  G0 (nach RP) oder G1
    G2                             G2
    G3                             G3
    TL 1                           T1

    STOP                           M00
    STOP 1                         M01

    COOL ON / OFF                  M07 / M09
    FED {Vorschubwert}             F{Vorschubwert}
    INL {text}                     {text}

    FINI                           -

    G0,G1  Coordinates of endpoint: X,Y,Z absolut

    G2,G3  Coordinates of endpoint: X,Y,Z absolut
           Coordinates of circle-center: I,J,K absolut

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    FROM  = defines the starting position in the machine (G92).
            Correlates the CAD-position with the machine-position.
            At the machine: set the tooltip manually to the defined position, start.
            Z-Val -= active tool-length.
    ZSUR1 = actZsur1 = workPlane; position of the tooltip above/below CAD-Obj-Zero;
            in workPlane the toolTip makes all work-movements (GO).
    CLEAR = actZclr1 = retract toolTip to  units above CAD-Obj-Zero;
            clear-position is used for all rapid-movements (RP).
    TEC     tool-definition (ToolLength and radius)
    TCPOS   toolChangePosition. Change tool:
            retract at ToolchangeHeight; move to toolChangePosition.

     Z-val rapid (RP) = CLEAR
     Z-val work (GO)  = ZSUR1

                        +--+
                        |  |  rapid-position of tool
                        |  |
                        |  |
    .....x..............+..+............ CLEAR (safePlane)........................
         |
       CLEAR                   +--+     ..............................x
         |                     |  |                                   |
    .....x..... _______________|  |__ ......CAD-Obj-Zero......x..  toolLength  ...
               |               |  |  |                      ZSUR1     |
               |               +--+  |  ....workPlane.........x.......x...........
               |                     |
               |                     |
               |_____________________|

    see ../prc/prc_cut1__.h     NCCmdTab = list of all NC-words

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    2018-07-30 V-1.1. TCPOS new. RF.

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