On 05/03/2015 08:32 PM, Tom Easterday wrote: > > Thanks Jon. So you change the value in Hal depending on the threads you want > to cut? Or you just have a setting that can do either and may not be as fast > as possible for high thread count? > Oh, no, certainly not! I chose some sane values that would allow fairly fast spin-up/spin-down times, and then have to remember that coarse threads need to be done at somewhat lower RPM than fine ones. This actually works out quite well. I can do 4-40 threads at 1000 RPM, which is quite cool, and gives insane tap life. I have never, to my knowledge, worn out a 4-40 tap! I will use it for thousands of holes, and then break it due to a setup error.
I use these combo drill-taps that run about $8 each, and allow ne to do essentially a spot-drill-tap operation without a toolchange. In general, the coarser thread pitches accompany larger tap diameters, so tapping at 500 RPM for a 1/4" tap would likely be reasonable, too. Jon ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
