From: andy pugh: > I think for a C axis it would make sense to use the XY origin of the > current coordinate system.
This is not possible, as the origin of X & Y is one corner of the bed. (no room to bolt the chuck here). > I am not sure how worthwhile that is, just unwrapping the cuts from > each other is enough to give a fairly good indication of cut progress. It's not so much about the view, but how the machine calculates cutting speed. For example, we put a workpiece in the chuck, bring the XYZ cutter to it and then start facing the upper surface. Bringing the cutter towards the centre of rotation faces the top surface, but the linear cutting speed is dependent on the angular speed x radius from the centre, which means knowing where the centre is. I have the machine configured to show CXYZ and it, by default, puts the axis of C at X0Y0. When cutting a 25mm diameter workpiece, the speed of rotation is not significantly varied as EMC 'thinks' that the radius is 1metre instead of 10cm. From: Viesturs: > Do You want to be able to find the exact center of rotation of the > > rotary joint? > In that case You can mount a round part in chuck and then find its > center with touch probe. No, I know where the axis is but EMC doesn't, and I don't know how to inform it. Maybe there is a better kinematics setup for this configuration than 'trivkins', which I am using right now. Many thanks for the suggestions, Robert ------------------------------------------------------------------------------ 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-d2dcopy2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
