> > > > LinuxCNC can create any mixture of step pulses, PWM, and other ways of > > controlling motors. The motor interface is modular and you can set it up > > to do just about anything. > > > > > > jmkasun...@fastmail.fm > > > > Linuxcnc doesn't actually support the beaglebone. > It was supported for a while on a branch that was not and will not be > merged. > It may be that you are using that old branch of linuxcnc or you may in fact > be using machinekit (a fork of linuxcnc) that does support the beaglebone. > > That said if the beaglebone driver supports velocity step mode then it > would be > easy to add a stepper as a spindle drive. > > Let us know what fork of linuxcnc you are using and we can direct you to the > best info. > > Chris M
Machinekit is the port I was looking at. http://blog.machinekit.io/p/machinekit_16.html https://groups.google.com/forum/#!forum/machinekit Further research appears to show that the Probotix Beagle Cape doesn't support any sort of index pulse so it's pretty well out for a lathe. Their schematic shows three PWM pins from the Beagle but they don't go anywhere. As in not routed to a connector. PMDX also makes a cape for $129. >From PMDX: "The lack of support for hardware acceleration for OpenGL on the BeagleBoneBlack continues to be a significant deterrent to using the BBB as the console device running a GUI for a CNC controller. Toolpath display using the on-board graphics of the BBB is barely usable, so plan on remote access with the GUI running on another computer if you need toolpath graphics." I had hopes for LinuxCNC running on the Beagle and being supported for the next decade or longer. I guess not. Thanks John ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
