I am actually trying to use your LinuxCNC MachineKit on a steel router/printer/digitizer with a 4'x8'x18" build area that I am building (see here <http://whereismyflyingcar.info/?cat=3>). I am making good progress and will be mounting motors and wanting to see them move in the not-too-distant future.
I plan to use a bipolar NEMA 34 (4.6Nm) dual shaft motor with a 5.5A-6.5A per phase draw for the X axis and I need to make sure I get a stepper/driver board that will handle that sort of load. I suppose that since the BePoPr++ allows for off-board stepper/drivers I need to go with that one as I doubt the built-in devices on the Replicape can supply that sort of power. Right now I am playing around with a 0.23Nm stepper motor and an EasyDriver board hooked up to my BBB. Which makes me wonder... what if I just hooked up 6A versions of the EasyDriver to my BBB to drive the motors and ran LinuxCNC? I am moving motors without a BeBoPr++ now, why do I need one? what does the BePoPr++ do exactly? (obviously a newbie question) Dave On Monday, January 20, 2014 1:47:50 PM UTC-6, Charles Steinkuehler wrote: > > On 01/20/14 09:56, Dave Covert wrote: > > > > Can someone tell me the difference between a BePoPr+ cape and a > Replicape? > > There are many differences, but to me a few of the key ones: > > * The Replicape has on-board stepper driver, while the BeBoPr family > uses standard Pololu modules. > > * The BeBoPr family of boards is currently supported by both LinuxCNC > and by Bas' custom software. At the moment, I believe you have to use > Elias' software for the Replicape, although I plan to get it supported > with LinuxCNC once I get a production board in-hand. > > I have a general overview of hardware capes lists on my blog you might > find helpful: > > http://bb-lcnc.blogspot.com/p/hardware-capes.html > > ...but I haven't updated it with info from today's e-mail yet (that > indicates the Replicape is now available for sale). > > Is there anything specifically you were wondering about? > > -- > Charles Steinkuehler > cha...@steinkuehler.net <javascript:> > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
