HAL component for tangential knife

Is it tangential?

This is now in master branch 2.10
To see new pins install 2.10 and type man motion
Interpreter Metadata PinsThese pins provide geometric intent and interpreter state for the segment of motion currently being executed. Unlike standard position feedback, these values are synchronized with the trajectory planner’s execution point.Interpreter Status Pins

• motion.interp.line-number

   (s32, out)
  The current G-code line number being executed.

• motion.interp.motion-type

   (s32, out)
  The type of motion currently in progress:
  • 0: None
  • 1: Rapid (G0)
  • 2: Feed (G1)
  • 3: Arc (G2, G3)
  • 4: Tool Change/Other

• motion.interp.feedrate

   (float, out)
  The interpreted feedrate for the current segment in units per minute.

Interpreter Geometric Pins

• motion.interp.heading

   (float, out)
  The XY plane heading of the current linear move in degrees. Measured counter-clockwise from the +X axis (0 to 360). This could be used to control a tangential knife.

• motion.interp.arc-radius

   (float, out)
  The radius of the current circular move. This value is 0.0 during linear moves. This could be used to modify plasma cutting parameters based on the arc radius and when hole cutting.

• motion.interp.arc-center-x

   (float, out)
  The absolute X-coordinate of the center point for the current arc. 0 if in YZ plane

• motion.interp.arc-center-y

   (float, out)
  The absolute Y-coordinate of the center point for the current arc. 0 if in XZ plane

• motion.interp.arc-center-z

   (float, out)
  The absolute Y-coordinate of the center point for the current arc if in XZ or YZ plane.

• motion.interp.normal-heading

   (float, out)
  the heading from the current point back to the arc centre for the current arc.

• motion.interp.iscircle

   (bit, out)
  True if the current arc is a full circle and not a helix.

NoteThese pins represent the commanded geometric intent from the interpreter and are updated in real-time as each motion segment is consumed by the trajectory planner. 
 

you did it master rod , it was hard , congratulations and thank you

after the great work of master Rod, now we have the clear and direct tool to create a tangential knife configuration like that one imp,emented in Mach3 , to detect the cretical angle and rise then align with the new angle then dowen to cut depth , continue the g-code