I do not know where you get the g68 code but coordinate rotation is
implemented in the development version of emc2. -This is done using g10.
Direction for getting it here
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Installing_EMC2#On_Ubuntu_6_06_or_8_04_from_source
definition here
http://www.linuxcnc.org/docs/devel/html/gcode_main.html#sub:G10:-Set-Coordinate
http://www.linuxcnc.org/docs/devel/html/gcode_main.html#sec:G10-L20
I have played with it - Works great :)
http://www.electronicsam.com/images/KandT/testing/rotate1.png
http://www.electronicsam.com/images/KandT/testing/rotate.png
sam
Colin MacKenzie wrote:
According to this recent page...
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?action=browsediff=3id=EmcFeatures
...G68 has been implemented. However, I have 2.3.3 installed and it says
unknown gcode. I've been looking forward to this gcode for a long time. I
would use it to easily correct any misalignments of the workpiece. For
example, in drilling pcb's I would touch off at one drill point (or any
reference point), go to an opposite drill point and compute the necessary
rotation in the XY plane. I would automate this process in my drill file
gcode generator.
Sure, there are ways of realigning the workpiece, but I often end up a few
mils or so off and it takes longer.
Anyone know the true status of this feature? I heard a year ago it would be
tough to implement because of the nature of emc's framework. (??)
C
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