> -----Original Message----- > From: Jon Elson [mailto:el...@pico-systems.com] > Sent: May-07-20 3:54 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Sourced from: Re: Fluctuating RPM using CUI ATM 10 > encoder > > On 05/07/2020 12:23 PM, Dan Henderson wrote: > > Is there a simple test code I can run to confirm ridged tapping is working > > or even the feed rate is synchronized to the encoder feedback? Without, > > spindle-at-speed enabled I�ve no way to visually confirm this. > > Just try these lines and see what it does, with the Z clear > to move down to Z-1 without hitting anything : > M03 S500 > G01 F10 Z0.5 > G33.1 Z-0.55 K0.025 > > If it stalls with the spindle running, it never saw the > spindle encoder trip the index-enable to off. > If it moves down in Z, then reverses the spindle and pulls > back in Z, then it is all working. > That will give a 40 TPI thread (assuming inch units).
500 RPM is 8.3333 RPS = 0.12 turns/second. Threading a 40 turns/inch hole means 0.12 inches/second or 12.5inches/minute. So you also have to make sure that your Z axis can move that quickly. John Dammeyer > > Jon > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
