Short version: https://www.youtube.com/watch?v=TUUOttmUVq4
I think it's a work in progress. ________________________________ From: Martin Dobbins Hi John, I am a member of the Mach group from Yahoo times, I don't have the rights to post (don't want them either) but sometimes the discussions are interesting. I do know the original poster has a robot but didn't want to use it because it is too expensive for the task. With that in mind maybe a robot would be the best thing for this project- but not an expensive one: https://www.youtube.com/watch?v=P2O8KCmVjU0 Martin ________________________________ From: John Dammeyer Thanks Martin, His question and the subsequent discussion on the MACH group has morphed in now discussions on whether to use closed loop steppers and ethercat. Not sure why everyone is so fond of leadshine closed loop steppers but what do I know. I like my AC servos. A decade or more ago it was MACH3 and the ESS or USB smooth stepper or the EMC as it was then called. Now it seems there are a lot more CNC solutions around and the number of people even considering LCNC seems to have dropped. I'm also surprised there isn't some sort of teaching module ready to go for LCNC although again, really, how many even want something like that. Much as Brian Barker might want to create a module the ultimate issue isn't the starting point but support a year or so later. Without sales to support the work that only one client wanted that may leave him hi and dry. At least a DIY LCNC solution is always open source with more than one clever person ready to help. And since there are versions of the MESA that close the loop for servo control on each axis I'd think that a training version with servos would be pretty easy. But again I may be simplifying all this. Before I send the original poster a link to this group along with the say the MESA site are there any other hardware solutions that would also be suitable? John > -----Original Message----- > From: Martin Dobbins [mailto:tu...@hotmail.com] > Sent: February-22-22 6:31 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] FW: [MachCNC] Mach4 teach/record > > John, > > No, the video isn't relevant to the original question, the attitude expressed > in the video may be. "I figured it out, it took me 5 > seconds, 5 months, and after I did I wondered why it took so long because it > was so easy" . I think I know why he does that ?? > > Some folks like figuring things out, others want someone else to do it for > them. The fact that you also wrote that Brian Barker > (MACH4 support) is interested in writing a module that does it, along with > the tenor of the original post might suggest that this isn't a > "teach a person to fish" opportunity. I could be wrong, I often am . > > It looks like there's a starting point here, and if the person already knows > python (or is willing to learn it) he could hit the ground > running, that's if he wants to give up Mach 4 that he's so familiar with. > > Martin > > ________________________________ > From: andy pugh > On Mon, 21 Feb 2022 at 19:09, John Dammeyer <jo...@autoartisans.com> wrote: > > > My wired pendant like the one in the video works great. But I'm not sure > > how that's relevant to my question with respect to > someone wanting 4 rotary axis that currently doesn't exist in MACH4 > > I don't think it matters all that much if an axis is rotary or linear. > There isn't anything to stop you setting the U axis scale such that it > rotates an effector in degrees. > > Teach programming isn't super well-explored, I don't think. But there > is a sample script: > https://github.com/LinuxCNC/linuxcnc/blob/master/src/emc/usr_intf/axis/scripts/teach-in.py > With a minimal manual page: > https://linuxcnc.org/docs/2.8/html/man/man1/teach-in.1.html > As it stands the script only records X, Y, Z. But as it's Python > expanding to more would be trivial. It would also be relatively easy > to have it output actual G-code programs rather than a position list. > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > � George Fitch, Atlanta Constitution Newspaper, 1912 > > > _______________________________________________ > 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 _______________________________________________ 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 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
