NX X Getting continuous "C" Axis output in Heidenhain 5 axis controller.

--------------- 
If we post an operation by OOTB Heidenhain post 
(Sim07_mill_5ax_tnc_mm) from Resource -> Library -> machines -> Installed 
Machines ->“Sim07_mill_5ax_tnc_mm” -> Postprocessor -> “Heidenhain” 
we are getting the output with all X,Y,C. 
How to get continuous "C" Axis output in Heidenhain 5 axis controller?

Solution

 The particular OOTB sim07 tnc post forces any 5-axis path into M128 output mode 
which would output the MCS goto’s (instead of mom_pos’s). 


After adding the below TCL proc in start of path through custom command we are 
able to get “C” output only.


#============================================================= 
proc PB_CMD_init_operation { } { 
#============================================================= 
 global mom_spindle_direction tap_direction 
 set tap_direction $mom_spindle_direction


 #<02-28-08 gsl> Determine TNC output mode here 
 global mom_operation_type mom_tool_axis_type 
 global TNC_output_mode


 if { [string match "Variable-axis Surface Contouring" $mom_operation_type] 
&& $mom_tool_axis_type != 0 } { 
 set TNC_output_mode M128 
 } else { 
 set TNC_output_mode CYCL19 
 }


 # ==> Force output mode, if desired 
 # set TNC_output_mode M128 
 set TNC_output_mode CYCL19

Notes and References

Hardware/Software Configuration

Platform: all
OS: n/a
OS Version: n/a
Product: NX
Application: CAM
Version: V12.0.2
Function: POSTBUILDER

Ref: 002-7005786