andy On Tue, Jul 12, 2011 at 10:09 AM, andy pugh <[email protected]> wrote: > There is a guy on the forum wanting to do wierd things with his > config. In effect he wants to slave/unslave axes on the fly. > > One of the many stumbling blocks with this is that he really needs a > way to force the internal value of an axis in the motion controller to > a value/ > For example, V might move independently, then get slaved to Y, and > then when it gets unslaved the motion controller etc needs to think > that V is where it actually is, rather than where the last V-word left > it. > > Is there a way to do this? >
i hope thats what Jim Thornton's THC component does it 'hijacks' the axis.2.motor-pos-cmd and reports its own fb position to hm2_mumble.mumble... so i hope it can open the one loop, then re-attach itself later, w/o loosing position i've been looking at it to do edm, so will eventually orbit the x&y around the Z which will break most of the loops, and re-attach later my own tests showed (w/o the thc.comp) that it (inserting a different cmd, and swapping fb's ) works this way but i wasn't successful in breaking the pos-fb net while live... the axis would lurch back to prev position so i had to invent my own edm dro... rather than use the Axis dro and had to make the 2 same before re-attaching to the emc loop. i'm still studying the code before attaching hdwr, so i know where to look when the inevitable oops happens. look in emc version 2.5 for a config 'plasma-m5i20' or for same in 'master' (whatcha get with a new gti clone) also 'man thc' ( once you have a newer suite ) ( also micges and dallur both have done similar ) hth tomp ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2 _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
