Axis preview is wrong in v2.6.0-pre0-4525-gd33b1e3 (see attached screenshot).
Load the attached ngc file. Z range is all wrong, Axis thinks it goes from 3 to -48 inches. Might be related to the program being mixed imperial & metric?
Related irc conversation: http://emc.mah.priv.at/irc/%23linuxcnc-devel/2013-07-30.html#03:37:30
This ngc file calls an external file which you have not included. This makes me unable to test it.
Can you determine whether O-call is required to reproduce the bug? If so, please include the needed file(s); if not, please fix the sample code to run alone.
Here's the missing file.
Please also attach quill-up-0.ngc
Aaaaand, the other missing file.