(author: Chris P)
(version: 0.1)
(date: 05/7/19)

(Probe Corner X plus Edge Angle for x,y,z 0,0,0 position)
(Start probe position is over back left corner of stock)
(inside the step off width square and within max z distance)
(ensure all settings have been set properly according to help diagrams)

o<probe_corner_x_plus_edge_angle> sub

  (uses NGCGUI style arg spec)
  (number after "=" in comment is default value)
  #<probe_tool_number> = #1    (=99)
  #<max_z_distance> = #2       (=0.5000)
  #<max_xy_distance> = #3      (=0.5000)
  #<xy_clearance> = #4         (=0.1000)
  #<z_clearance> = #5          (=0.1000)
  #<step_off_width> = #6       (=0.5000)
  #<extra_probe_depth> = #7    (=0.0000)
  #<probe_slow_fr> = #8        (=0.0)
  #<probe_fast_fr> = #9        (=10.0)
  #<calibration_offset> = #10  (=0.0000)
  #<x_hint> = #11              (=1.0000)
  #<y_hint> = #12              (=1.0000)
  #<diameter_hint> = #13       (=1.0000)
  #<edge_width> = #14          (=0.5000)
  #<probe_mode> = #15          (=0)
  #<wco_rotation> = #16        (=0)

  (Cancel G92 offsets)
  G92.1

  #<workspace_x> = #[5201 + [20 * #5220]]
  #<workspace_y> = #[5202 + [20 * #5220]]

  (Probe Tool Safety Check)
  o<110> if [#5400 NE #<probe_tool_number>]
  (MSG, Specified probe tool #<probe_tool_number> not in spindle, aborting)
   o<probe_corner_x_plus_edge_angle> return
  o<110> endif

  (Probe Diameter)
  #<probe_diameter> = #5410

  (Probing depth from the z probed clearance height, used for z moves)
  #<z_probe_stack> = [#<z_clearance> + #<probe_diameter> + #<extra_probe_depth>]

  #<z1x> = #5420

  #<z1y> = #5421

  (Probe X Positioning Move, Step Off Width)
  G91
  G0 y[#<step_off_width>]

  (Probe X Positioning Move, to Probing Depth)
  F[#<probe_fast_fr>]
  G1 Z-[#<z_probe_stack>]

  #<p1x> = #5420

  (Call sub "probe_y_minus" to Probe y- side of Workpiece)
  o<probe_y_minus> call [#1][#3][#4][#8][#9][#10]

  #<p1y> = #<_value>

  (value returned safety check, aborts if no value returned)
  o<120> if [#<probe_mode> EQ 1 AND #<_value_returned> NE 1]
    (MSG, Missing Y Sub returned edge parameter, aborting)
    o<probe_corner_x_plus_edge_angle> return
  o<120> endif

  (Probe Y Positioning Move, up to Z clearance plane)
  G91
  G0 Z[#<z_probe_stack>]

  (Probe Y Positioning Move, Traverse Workpiece at Z Clearance plane)
  G0 X-[#<step_off_width>] Y-[#<step_off_width>]

  (Probe Y Positioning Move,to Probing Depth)
  F[#<probe_fast_fr>]
  G1 Z-[#<z_probe_stack>]

  #<p2y> = #5421

  (Call sub "probe_x_plus" to Probe X+ side of Workpiece)
  o<probe_x_plus> call [#1][#3][#4][#8][#9][#10]

  #<p2x> = #<_value>

  (value returned safety check, aborts if no value returned)
  o<130> if [#<probe_mode> EQ 1 AND #<_value_returned> NE 1]
    (MSG, Missing X Sub returned edge parameter, aborting)
    o<probe_corner_x_plus_edge_angle> return
  o<130> endif

  (edge width move to edge second probing point)
  G91
  F[#<probe_fast_fr>]
  G1 Y-[#<edge_width>]

  #<p3y> = #5421

  (Call sub "probe_x_plus" to Probe X+ side of Workpiece)
  o<probe_x_plus> call [#1][#3][#4][#8][#9][#10]

  #<p3x> = #<_value>

  (value returned safety check, aborts if no value returned)
  o<140> if [#<probe_mode> EQ 1 AND #<_value_returned> NE 1]
    (MSG, Missing X Sub returned edge parameter, aborting)
    o<probe_corner_x_plus_edge_angle> return
  o<140> endif

  #<edge_delta> = [#<p3x> - #<p2x>]

  #<edge_angle> = [ATAN [#<edge_delta>] / [#<edge_width>]]

  M68 E4 Q[#<edge_delta>]

  M68 E3 Q[#<edge_angle>]

  #<c1xr> = [#<z1x> + [#<p2x> - #<z1x>] * COS[-#<edge_angle>] - [#<p2y> - #<z1y>] * SIN[-#<edge_angle>]]

  #<c1yr> = [#<z1y> + [#<p1x> - #<z1x>] * SIN[-#<edge_angle>] + [#<p1y> - #<z1y>] * COS[-#<edge_angle>]]

  #<c1x> = [#<z1x> + [#<c1xr> - #<z1x>] * COS[#<edge_angle>] - [#<c1yr> - #<z1y>] * SIN[#<edge_angle>]]

  #<c1y> = [#<z1y> + [#<c1xr> - #<z1x>] * SIN[#<edge_angle>] + [#<c1yr> - #<z1y>] * COS[#<edge_angle>]]

  (Probe Completion Move to Z Clearance Plane, and XY Zero)
  G91
  G0 Z[#<z_probe_stack>]
  G90
  G0 X[#<c1x>] Y[#<c1y>]

  (probe mode rules for WCO,Rotation and probe position measuring only)
  o<150> if [#<probe_mode> EQ 0 AND #<wco_rotation> EQ 0]
    (Record Zero in selected axes and WCO)
    G10 L2 P#5220 X[#<c1x> + #<workspace_x>] Y[#<c1y> + #<workspace_y>]
    o<probe_corner_x_plus_edge_angle> return
  o<150> endif

  (probe mode rules for WCO,Rotation and probe position measuring only)
  o<160> if [#<probe_mode> EQ 0 AND #<wco_rotation> EQ 1]
    (Record Zero in selected axes and WCO)
    G10 L2 P#5220 X[#<c1x> + #<workspace_x>] Y[#<c1y> + #<workspace_y>] R[#<edge_angle>]
    o<probe_corner_x_plus_edge_angle> return
  o<160> endif

o<probe_corner_x_plus_edge_angle> endsub

M2 (end program)

