Rotary axes for orbiting

The motion of rotary axes in the orbiting phase is only possible in a specific shape. Rotary axes may not be explicitly programmed in the down and orbiting geometry of the down channel but can only be moved by means of PCS transformation ID 212. For example, the transformation can couple a rotary axis for a screw electrode to the Z height. The transformation requires specific programming to ensure that the PCS transformation functions correctly in the system consisting of down and escape channels.

Restrictions:

  1. It is only permitted to configure the C axis as the slave axis and the Z axis as the master axis.
  2. The PCS transformation may only be activated after the erosion on the path phase.
  3. The PCS transformation must be programmed in the escape channel in the ESCAPE PATH POST SEQUENCE after the #CS DEL ALL because the transformation only acts in the CS of the down channel during orbiting.
  4. The PCS transformation must have identical parameters in the down and escape channels.

This type of machining is also possible in combination with the following applications, see Approach Path Extension Using kinematics in die sinking.

Example

Parameterisation example

Down channel

trafo_pcs[0].trafo[0].id             212
trafo_pcs[0].trafo[0].param[0]       3
trafo_pcs[0].trafo[0].param[1]       4
trafo_pcs[0].trafo[0].param[2]       0.5
default_id_of_trafo_pcs[0]           212

Escape channel

trafo_pcs[0].trafo[0].id             212
trafo_pcs[0].trafo[0].param[0]       33
trafo_pcs[0].trafo[0].param[1]       34
trafo_pcs[0].trafo[0].param[2]       0.5
default_id_of_trafo_pcs[0]           212

Programming Example

PCS transformation in down and escape channels

Down channel

; Define the CS for path erosion
N0690 #CS ON [APP] [0, 0, 0, 0, 0, 0]
N0770 L DS-ActivateEscape-ACS.sub
N0780 LL EDMOn
N0790 L geometry_erosion_on_path.nc
; CS for orbiting
N0850 #CS ON [PCS] [0, 0, 0, 0, 0, 0]
N0860 #TRAFO PCS ON          ; Activate the PCS transformation
N0870 L DS-ActivatePlanetary.sub
N0890 LL Geometrie_Planetary
N0920 ;------- end machining
N0930 L DS-DeactivatePlanetary.sub
N0940 L DS-DeactivateEscape.sub
N0950 #TRAFO PCS OFF         ; Deactivate the PCS transformation
; …

Escape channel

;…
N100 #ESCAPE PATH DEF BEGIN  ( Define the geometry for path erosion
N110 #CS ON [APP] [0,0,0,0,0,0] ;identical CS as in the down channel
N120 #ESCAPE PATH BACKWARD STOP
N130 L geometry_erosion_on_path.nc
N150 #ESCAPE PATH POST SEQUENCE
N160 #CS DEL ALL
N170 #TRAFO PCS ON         ;PCS transformation only becomes effective after
; path erosion in the CS of the down channel for orbiting
N180 #ESCAPE PATH DEF END
;…