Daniel Goller wrote: > Possible difficulties I see in this is that often we get the turret within > .050" of the tail stock quill. > Which means this safe zone would require a rather fine grained resolution in > Z, to avoid false alarms while still being able to stop the actual crash. > > Is there something emc2 already has that could be used for this? > Soft limits can be set extremely tight without any problem. In theory, you could set them within .001" of a crash and never have a false alarm. The axis will smoothly decelerate when jogging and stop exactly on the soft limit. When programmed to exceed the limit, you will get a message when you LOAD the program, BEFORE you even hit Run, that it will violate the +Z limit, for instance. If you program to move to within .001" of the limit, then you will get no message.
Now, the real "limit" here is that these are "planes" not "areas". So, if at some X position the crash of Z will happen at a different point than at a different X, EMC2 doesn't currently handle this. It would be a nice feature, and some commercial controls have a very powerful scheme to handle multiple exclusion "zones" in several axes, together. Jon ------------------------------------------------------------------------------ This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
