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Title: Ability to disable "safe height of Z axis" parameter #82 [Print This Page]

Author: math_indy    Time: 2018-10-5 23:57
Title: Ability to disable "safe height of Z axis" parameter #82
Parameter #82 "safe height of Z axis" returns the Z-axis to the specified height at the beginning of every program cycle.  I would like the ability to disable this feature as it is undesirable in some situations especially when using programs that use G91 "incremental".


I have parameter #82 set to "0" but this is not the same as "disabling parameter #82" because the Z-axis still returns to Z0.0 at the beginning of every program.  For example, in the program below I want it to incrementally remove 0.001" from a surface every time it runs (Z-0.001, Z-0.002, Z-0.003,.. etc.) .  


If, because of parameter #82 the DDCSV2.1 always returns to Z0.0 at start then my use of G91 to incrementally lower the Z-Axis by -0.001 every cycle means it never decends below -0.001.


(BASIC SURFACE GRINDING PATTERN)
G20
G90
G54
M3 (SPINDLE ON)


(THIS BLOCK OF INCREMENTAL CODE WILL NOT WORK AS INTENDED BECAUSE OF PARAMETER #82)
G91 (INCREMENTAL)

G01 F250. Z-0.001
G90 (BACK TO ABSOLUTE)

G01 F6350. X10.0 (GRIND)
G01 F6350. X0.0
M5 (SPINDLE OFF)



Author: ytliu    Time: 2018-10-6 06:23
If you want to turn off this feature, you can empty the contents of safez.nc in the installation package and install it to the controller.
Author: math_indy    Time: 2018-10-9 03:16
I removed the M98 P101 that was inside the safez.nc file and, as you said, this fixes the issue for me.  




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