> -----Original Message----- > From: Gene Heskett [mailto:[email protected]] > Sent: Friday, April 10, 2020 12:52 AM > To: [email protected] > Subject: Re: [Emc-developers] Toolchange and tlo behaviour change in 2.8 > > On Thursday 09 April 2020 23:19:11 Ken Strauss wrote: > > > > -----Original Message----- > > > From: Reinhard [mailto:[email protected]] > > > Sent: Thursday, April 09, 2020 11:02 PM > > > To: EMC developers > > > Subject: Re: [Emc-developers] Toolchange and tlo behaviour change in > > > 2.8 > > > > ...seriously trimmed > > > > > So for me, its a wrong behaviour, allow to retain G43 without the > > > > possibility > > > > > to change toollength and tooldiameter in GCode. > > > > I'm probably missing something in this discussion but doesn't G10 L1 > > and G10 L10 allow one to change a tool table entry including tool > > length (actually X,Y,Z offsets so more than just length) and the tool > > radius plus front angle, back angle and orientation for lathe? > > > All that is a hangover from our simpler days Ken, and as such should > remain as it is. > > If you want Heidenhawn style, and have the $3k for an ATC spindle, add it > to your tool change subroutine FILE. There are many of us with R8 > spindles that are far better off using a touch contact jig to set tlo > anyway because theres no practical way to measure the tlo without doing > it in real time after changing the tool when all you have is an R8 > spindle. Leave it be until someone invents an R8 spindle that can be > calibrated, once per tool it can hold. That hasn't happened, yet. And > given the error that an extra crank on the drawbolt can give, I'm not > holding my breath. For us, the realtime measurement and application of > tlo is the only practical way to fly. > > Cheers, Gene Heskett
Many use Tormach style (TTS) tool holders in R8 collets. I find that they typically repeat to +/-0.001 or so. Not perfect but cheap and adaptable to most any machine that can take a 3/4-inch R8 collet and with a flat spindle nose 1.5-inch or more in diameter. _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
