On Friday 05 February 2021 13:53:44 Jon Elson wrote: > On 02/05/2021 10:07 AM, Gene Heskett wrote: > > You have my curiosity bump itching Jon, When I get my stuff back > > together on the GO704, and get my new 'scope unpacked, I'll take a > > look at the step drive output and answer that itch. > > You actually should be able to check this out with > Halscope. Look at the velocity or step rate > for the Z axis, and trigger on spindle.0.index-enable or > whatever it is called on your LinuxCNC version. If what I > said was right, velocity should go higher than the required > Z feedrate for > a moment right after the spindle encoder gets the index > pulse, and then settle down to the required feedrate for > that thread pitch. > > Love that rigid tapping! I just did 160 holes, with a spot > drilling step, then a drill through step, and finally > tapping some 6-32 and 2-56 holes. It is kind of scary > watching a 6-32 tap plunge in at > 1000 RPM and 32 IPM feedrate. Taps the hole in barely a second! > So do I Jon, but I've been aiming to ask you what you do about the overshoot at turnaround time at 1000 rpms on that bridgeport?
> Jon > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
