Hello everyone, Thank you very much for your comments and suggestions. To me the tap is not the issue, a broken tap in a hole IS an issue, so it is all about not breaking the tap if the spindle faults out. As long as the axis stays slaved to the spindle, the tap can be removed by hand. There is not much point of restarting on the same hole, as that one can be completed by hand tap if needed. However, having just said that, I have found that since the axis slave operation starts on the index mark of the spindle encoder, I can actually tap a hole again, and with quite impressive results. I will look at motion.feed-inhibit, it looks promising. The docs say that it allows synchronized motion to complete, but it is unclear if it will work in the case of manually backing a tap out of a hole. I will report my findings. Thank you, -Neil-
On Mon, Mar 28, 2016 at 5:00 PM, EBo <e...@sandien.com> wrote: > On Mar 28 2016 5:14 PM, Gene Heskett wrote: > > On Monday 28 March 2016 15:49:49 andy pugh wrote: > > > >> On 28 March 2016 at 20:31, Neil Whelchel <neilwhelc...@gmail.com> > > wrote: > >> > When the machine is doing a spindle synchronized operation such > >> > as tapping, this causes the motion sync to be broken as well as > >> the > >> > tap! > >> > >> Does motion.feed-inhibit sound like what you need? > >> http://linuxcnc.org/docs/2.7/html/man/man9/motion.9.html > > > > Butting in here, not sure Andy. It seems to me the ideal situation > > would > > be to just shut the spindle down, while NOT unlocking the axis that > > was > > slaved to it, which might save the tap AND allow hand applied power > > in > > reverse to unscrew the tap from the hole with the machine still > > following the tap back out of the hole. The chances of restarting the > > operation to finish that hole are somewhere between slim and .00001% > > unless the starting point is saved and can be run back to, which I > > don't > > believe is the case now as its forgotten at the end of each run with > > the > > current code anyway, but the tap may be saved. Perhaps this starting > > point save might be part of this GSOC G33.1 improvement project? > > To me saving the part from a broken tap is typically worth more than > the cost of the tap. But in either case, a fail safe would be > preferred. > > > ... > > > > I received some ER20 collets from China today, but the package > > labeled as > > haveing 10 ea 1/8" collets in it, had 10 collets in it, but they were > > all 3/8' and I already had several of those that I've little or no > > use > > for since I don't own 15 ea 3/8 drill bits. :) Anybody need any 3/8" > > ER20's? :) I assume a language barrier. I'll check on ebay & see if > > I > > can get it fixed. Or just re-order perhaps as I do need another > > handfull of 1/8" collets in any event. > > I will have to check the collet type on the CNC router, but if it is a > ER20, I would be willing to buy two or more off you. Do check with ebay > first... > > EBo -- > > > ------------------------------------------------------------------------------ > Transform Data into Opportunity. > Accelerate data analysis in your applications with > Intel Data Analytics Acceleration Library. > Click to learn more. > http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140 > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140 _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
