Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Slightly wrong X and Y output for Fanuc OOTB Simulation PP compared to Siemens and Heidenhain

Status
Not open for further replies.

Good_not_nice

Mechanical
May 25, 2017
3
Colleagues, experts,
I am using an NX ready PP from "installed machines" folder to create a new one for a machine with similar control and kinematic.
G68.2 works fine for 3 + 2, canned cycles are OK, but X and Y coordinates after G43.4 (simultaneous 5 axis) are different from the CL file which is not true for the same machine but Siemens and Heidenhain PP.
Please see the following:
from the CL
CL_htp0mo.png


from the TNC file
TNC_aeb7cz.png


from the Siemens file
Siemens_di6tmw.png


from the Fanuc file
Fanuc_xqjmko.png


Only the Fanuc postprocessor changes X and Y values from the CL coordinates, while Z, B and C are correct.
How can we avoid this? What is wrong with the NX-Fanuc G43.4 output?
I am using NX 10. The PP are in "sim07_mill_5ax" directory. The problem is the same in NX 8.5.

Appreciate your thoughts and ideas.

Thank you !
 
Replies continue below

Recommended for you

Found a solution:

In the Fanuc style PP by default "dpp_ge(sys_output_coord_mode)" is set to "TCP_FIX_MACHINE".
Should be changed to "TCP_FIX_TABLE". See below:

eng-tips_sol1_dfqmlm.png
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor