Brian > There is not much I can do quite easily on my machine to correct the skew. It's CNC cut, and partly hand drilled, with no adjustment possibilities (wish it was). Guess I could drilling up holes to get some play, but rather not. And of course you are right, the best thing is to have a square machine.
Matt > Yes, that is my machine configuration. Comparing skewkins with the kin from first post, it's the same, so it will be same issue with overjogging joint soft limits. Andy > Yes, in coordinated mode the joint soft limits is obeyed. If in MDI "g0 y-1" I get a "Linear move on line x would exceed joint x's negative limit". Dave > Well, yes, the starting point was to correct the skew, and that works fine with *kins. It's the jogging in teleop/world mode that has problems with not obeying the joint limits. I do not know Stuarts machine, but it sound to me that he had a non flat work area and corrected Z with a correction table? My machine has a flat and square table in regarding to all joints, it's my X any Y axis(joints) that are not 90deg to each other (XY+Z router). I have tried a gantry-sim and same problem there. So the question boils down to: Can I get a non trivial kin machine to obey all joint's soft limit when jogging in teleop mode so I don't risk running into the limit switches? 2013/3/7 dave <[email protected]> > On Thu, 2013-03-07 at 10:23 +0000, andy pugh wrote: > > On 6 March 2013 22:16, andy pugh <[email protected]> wrote: > > > > > No, gantrykins is another non-trivial kins. But I don't know why it is > > > non-trivial. > > > > Actually, I do know why this is, it is so that the machine can be > > homed in joint-mode then run in world-mode. > > > > Do joint limits work in coordinated mode? (ie, when running G-code?) > > > Am I missing something? IIUC this whole discussion is really about > correcting for skew, i.e.non-orthogonality. *kins is certainly a way to > do this. However, the simple approach would seem to be a correction > table much like Stuart did on his 'big' machine. > > Stu please chime in here. > > Dave > > > > ------------------------------------------------------------------------------ > Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester > Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the > endpoint security space. For insight on selecting the right partner to > tackle endpoint security challenges, access the full report. > http://p.sf.net/sfu/symantec-dev2dev > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the endpoint security space. For insight on selecting the right partner to tackle endpoint security challenges, access the full report. http://p.sf.net/sfu/symantec-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
