On 2/18/2014 6:13 PM, Tom Easterday wrote: > I will just (once again) point to > http://wiki.linuxcnc.org/cgi-bin/wiki.pl?GantryPlasmaMachine
Thanks, I somehow missed that previously. > Two servo motors/encoders on the Y axis, trivkins configuration > (configs are in the links on the page). Gets an amazing amount of > use at Maker Works in Ann Arbor and runs great. See catchy video > here ;-) http://maker-works.com/wordpress/tools/cnc-plasma-cutter/ If I'm following things correctly, you're doing something very similar to the HAL gantry component I just created: applying the same commanded position to each gantry joint, providing for an offset between the individual joints to avoid racking. Homing is substantially different, but then I don't have fancy Granite drives that will home themselves, so I had to work with LinuxCNC. :) > It isn't running a BBB w/ Mesa but that would be great at some point > in the future!! Well, first Mesa has to make a BBB cape! Although there are beginning to be some FPGA add-ons for the BeagleBone that might be able to run the hm2 firmware. I'm waiting on my LogiBone kick-starter and there are a few other designs in the works I'm aware of. -- Charles Steinkuehler char...@steinkuehler.net
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