On Wednesday 21 May 2014 03:13:10 Steve Blackmore did opine And Gene did reply: > On Tue, 20 May 2014 23:39:28 -0400, you wrote: > >Greetings docs maintainers; > > > >I expect those interactions were expected to be self-evident by the > >guru's, but from the docs, its not all that well explained. > > Hi Gene - I've never used the G76 in Linuxcnc but it certainly looks > different to the Mach version. Never really used that either apart from > testing. I prefer using G33 (G32 in Mach). I do use CAM so it's easy > for me to control it more precisely and not rely on how somebody else > thinks it should be done. > > Steve Blackmore > --
I just the other day, used G33 in a g76 like cycle to make the tapered thread and nut that grabs the X screw, which looks like its going to work well, with no glue needed. And now that I have synthesized a stop till stopped on a direction change in my record setting, longest ever .hal file, I can also use g33.1 for rigid tapping. But there is a potential broken tap gotcha! If in the slowdown & stop phase, Z (following in sync with the spindle), passes the -limit setup in the .ini, Z stops instantly while the chuck is still coasting to a stop, and then picks it back up as it comes back past the limit in the reversing move. I haven't broken a tap, but as I've reported before, I have seen it do it while cutting air quite a few times. Since lcnc has no clue about the ballistics of the reverse, and therefore cannot predict the over travel, I'm not sure there can be a fix for that other than setting the -limit well into the chuck. 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) Genes Web page <http://geneslinuxbox.net:6309/gene> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
