Frank Tkalcevic wrote: > > > > Nope, you are exactly right. On both accounts. Turning the spindle by hand > will make Z move until it gets to the Z specified in G33/33.1 then stop. > G33.1 will move back, but only when it is within the G33.1 bounds. > Are you sure? When the tap reaches the commanded depth, the command is given to reverse the spindle. EMC has no way to know how long that takes, so it has to continue moving Z forward until the spindle can slow to a stop and begin reversing. If the Z feed actually stopped immediately when the depth was reached, it would break the tap. At least this applies to G33.1 The behavior should be different between G33 and G33.1 On the G33, it is assumed you have made provisions for the proper exit of the tool from the work at the end of the single-point threading pass. On a G33.1, the tap is buried in the workpiece, and Z MUST stay in sync absolutely until the tap is fully backed out of the work, no matter how much the spindle overshoots when it is commanded to reverse.
Jon ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
