RogerN wrote: > G33.1 requires a spindle encoder to the best of my knowledge. I have a > couple of Tapmatic NC tapping heads for non-rigid tapping that I was hoping > to get to use. I hope to add a spindle encoder sometime but thought maybe I > could use the Tapmatics until then. > > I have written some c programs that generate the code for tapping heads. My Procunier tapping head reverses at 2 X speed when the quill retracts. You want the spindle speed to be slightly higher than what you put into the program. This way, the forward clutch will slip a little when tapping the hole. (You DON'T want to know what happens if the spindle speed is LESS than you specify, but the tap is punched through the hole instead of threaded in.)
See http://pico-systems.com/recttap.c This gets location and spacing for a grid of holes in the X-Y plane, and asks for spindle speed, depth and threads/inch and generates G-code to tap all those holes. I also have one that does the same for a list of X-Y coords from a file, but i don't have that program online. Jon ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
