Hi all, I don't want to distract everyone from EMC2.2 but I've done
some fun stuff in TRUNK (pre-2.3) with probing.  I don't think many
people are using probes but I know some are, and they might like to
try it.  I'd appreciate any reports of success or failure.

There are some new Gcodes documented here:

http://www.linuxcnc.org/docs/devel/html/gcode_main.html#sub:G38.2:-Straight-Probe

which allows much smarter probing without all the wasted motion.  I
tweaked gridprobe.ngc into smartprobe.ngc:

http://cvs.linuxcnc.org/cvs/emc2/nc_files/smartprobe.ngc?rev=1.1

and the results are something like this (the program preview is
turned off, and the purple lines are the backplot): 

http://timeguy.com/cradek-files/emc/smartprobe.png
http://timeguy.com/cradek-files/emc/smartprobe2.png

Connecting those points gives this path:

http://timeguy.com/cradek-files/emc/probe-results.png

This example was 2500 points probed in about 20 minutes.  It's often
doing several points a second.  I also added probe protection, so if
the probe trips when there is NOT a probing move going on, the machine
stops.

I think with these new G38.x primitives there are a lot of smart ways
you could probe a shape.  If you write one let us know!

Chris

-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems?  Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >> http://get.splunk.com/
_______________________________________________
Emc-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-users

Reply via email to