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

Postprocessors: G-Code and others (optional).


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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, left 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, left 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, left 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)





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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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