I am pretty sure Dave's hexapod is a six axis milling setup. Not a walking spider robot. Like this one: https://www.youtube.com/watch?v=G_UmhUjZhNo https://www.youtube.com/watch?v=nebJ59TcYlQ
On Sat, Jul 28, 2018 at 4:54 AM Chris Albertson <albertson.ch...@gmail.com> wrote: > What kind of hexapod are you building? I've have a long interest in them > but, so far have only built single legs as prototypes. All of then had > short lifetimes. > > What what kind of motors are you using and how many per leg? Finding good > motors at a reasonable price is important. With only 3 per leg you need 18 > motor and an 18-axis controller. With 4 per leg you have a 24-axis system > and even if you only spend $100 per axis it costs a bit. > > The inverse kinematics is not hard to work out. Just a long and repeated > application of the plain geometry and so trig. > > > > On Fri, Jul 27, 2018 at 7:23 PM dave engvall <dengv...@charter.net> wrote: > > > Oh damn, I just sent my reply to Andy not to the list so here goes again. > > > > I just had Ray Henry on the phone and picked his brains. He says tk was > > written for the hexapod so one needs to find the hexapod kinematics. > > From there is should be easy or so he says. I've never tried it so all > > I can do is relay information. Sorry I can't be more help. > > > > An "old" wiki may shed more light. > > > > Dave > > > > > > On 07/27/2018 02:59 PM, andy pugh wrote: > > > On 27 July 2018 at 22:01, yomin estiven jaramillo munera > > > <yejm...@gmail.com> wrote: > > >> hi to everybody, my application is a hexapod and i decided to change > > my GUI > > >> from axis to tklinuxcnc, my problem is that in the axis GUI all my > axis > > >> move without problems but in tklinuxcnc i have problems with the Y > axis > > >> specifically , This is the error: > > > Which version of LinuxCNC are you using? > > > > > > I am not sure if tklinuxCNC is entirely aware of non-identity > > kinematics. > > > > > > > > > > > > > > ------------------------------------------------------------------------------ > > Check out the vibrant tech community on one of the world's most > > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > -- > > Chris Albertson > Redondo Beach, California > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
