I just looked. That is a really nice way to design this. At first I thought "Three boards? Why?" but this gives you some flexibility to change out one board and also you have some packaging options too.
One thing I want to point out is that anyone here could have this PCB made for 40 cents each and have a stack of them in hand before the start of 2021. However it might be worth a re-design using surface mount parts because JLCPCB now offers to assemble SMT parts at no cost. They would solder everything but the connectors and it would cost maybe $1 per PCB total. On Sat, Dec 12, 2020 at 9:44 PM Robert Murphy <robert.mur...@gmx.com> wrote: > I used a 3 board solution on my BBB before switching from MK to Linuxcnc. > > https://github.com/ozzyrob/pp_cape > > https://github.com/ozzyrob/pp_bob_input > > https://github.com/ozzyrob/pp_bob_output > > > The cape attaches as normal and the 2 other boards sit either side > connected by a short ribbon cable. > > Still have a few sets of boards left over, and one set of 3 fully built > that I used but no longer have a use for. > > There are pretty basic but I found them to work without any issues. > > On 13/12/20 7:18 am, Alan Condit wrote: > > Marcus, > > > > Jon Elson (Pico-systems) sells the Cramps board designed by Charles > > Steinkuehler that can run six Pololu stepper drives (like 35v 1 to 2 > amps). > > I designed a little PCB that can plug into three of the stepper driver > > sockets to allow it to control 3 external drives. They are or were > > available on OSHPark as CRAMPS-BOB3-a3. > > > > Alan > > > > > >> From: marcus.bow...@visible.eclipse.co.uk > >> To: EnhancedController <emc-users@lists.sourceforge.net> > >> Cc: > >> Bcc: > >> Date: Sat, 12 Dec 2020 19:38:12 +0000 > >> Subject: [Emc-users] Beaglebone and MachineKit > >> John (or anyone else), > >> > >> Is there a 'cape' currently available to suit the Beaglebone Black > >> running MachineKit or LinuxCNC? > >> I know there used to be a cape specifically for that purpose, but it has > >> been out of production for some time. > >> I have a Beaglebone I would like to press into service running either > >> LinuxCNC or MachineKit. > >> Are images available for both? > >> > >> Marcus > >> > >> > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
