To use a Tapmatic head you just need to calculate the feed rate based on rpm and pitch. They are self reversing so you feed down then feed up without stopping the spindle. Even if you stop the feed the tap will stop turning at some point then when you reverse the Z the tap will reverse direction and back out.
The only important point about using a Tapmatic on a CNC is not to over feed. JT On 5/11/2013 7:13 PM, 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. > > Roger Neal > > > -----Original Message----- > From: andy pugh > Sent: Saturday, May 11, 2013 5:05 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] DIY G-Code > > On 11 May 2013 15:31, RogerN <re...@wildblue.net> wrote: >> Part of the improvement I hope to gain is spindle control, that brings me >> taping capability but I read that G84 in LinuxCNC isn't implemented. I >> think I could write an "O" subroutine for what I'm wanting to do but I was >> hoping to figure out how to do it in C/C++ > Are you sure that G33.1 isn't what you are wanting? > http://www.linuxcnc.org/docs/html/gcode/gcode.html#sec:G33_1-Rigid-Tapping > > ------------------------------------------------------------------------------ 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
