Follow-up. https://www.youtube.com/watch?v=HvRG91yWNCQ I have to do more digging but this video may explain what I need. John
> -----Original Message----- > From: John Dammeyer [mailto:jo...@autoartisans.com] > Sent: October-07-17 11:03 PM > To: 'Enhanced Machine Controller (EMC)' > Subject: Re: [Emc-users] MachineKit on the BeagleBone Black > > Hi Gene, > Truly a matter of how we use our tools and how often. > > I have a PCB touch plate for my MACH3 JGRO style CNC router. Had to modify > some example code for the button on the screen including a couple of > reminder dialogs to make sure (really sure) that I attached/removed the clip > lead from the router bit since my router shaft is insulated. I believe > there was even a youtube video on how to set all that up. > > Without good documentation all of this is hard for someone new at this. For > example, the Xylotex.ini file didn't have any documentation that the max > velocity was in ips and no comment to that effect. The same file also has > totally different example values in the comments from what is actually used. > Very confusing for a while. > > The Xylotex.hal file has this commented out for the probe input. I'll have > to check and see if this can be used. > #probe input > #net probe motion.probe-input <= bb_gpio.p8.in-18 > #setp bb_gpio.p8.in-18.invert 1 > > But where to start after that? Does one load a TouchPlate.nc file and run > it. Then load the actual g-code file again? > > Can you make it pause and print a comment to let you know it's going to go > to the touch plate location? Can it show any dialogs to guide a user > through the operation? > > For the MACH3 system I move the Z axis over and close to the top of the item > I want to have as zero. I then click on a button on the screen. Then I > wait and follow the dialogs. The first tells me to attach the clip because > without it no ground will be sensed and the Z will try and go through the > table. Next it moves, touches off and lifts to 1" above with the zero now > set. Finally another dialog to remind me to remove the clip off the tool. > > Takes longer to type than to do it. Change or adjust the tool then place > the PCB on the work and just re-zero. > > And as far as custom G-Code, I use Alibre CAD and MecSoft Visual CAM to > create my G-Code. I routed a parabolic reflector out of MDF that I don't > think I could have done with hand written G-Code. Same with DB-9 and DB-25 > cut-outs. > > But if I want to do a bolt circle of 8 holes I can use my Shumatec DRO (once > I find the manual) but I think it would take me a lot longer to write G-Code > by hand. > > How easy is it to add a button to the main user interface that starts the > touch plate action? > > I know. Way more questions and perhaps the wrong place for them? > Thanks > John > > > A temporary touch plate is a piece of pcb material with a wire soldered > > to the top face and connected to an interface breakout pin. Stick it > > down someplace with a half a drop of superglue, and when that operation > > is done, rip it off & hang it on a peg till the next time you need it. > > Wire that pin up to motion.probe-in in the hal file and a line or 8 of > > gcode (G38.2 usually), done. Then you don't worry about the TLO in the > > tool table. None of my TTS toolholders have a permanently assigned and > > calibrated tool in them as I'd have to buy another $300+ dollars worth > > of the Chinese versions to do that. I am so used to writing my own gcode > > that I don't normally use more than the arc calculator. I'm fairly > > familiar with loop and subroutine constructs, and have written 90 line > > programs that might take 3 days to run. The one time I looked at Mach, > > it would have taken me 3x as long to become "productive" using it. Of > > course for me, productivity isn't relative as 90% of what I do is one > > offs for my own use anyway. > > > > The outside parties making wizards aren't outsiders, but generally, > > members of this list and often authors of some of LinuxCNC itself. I > > only know of two other lists I am on where that is the case, most lists > > are users only and the lists seem to be an insulating wall between the > > authors and the users. Here we have some extremely talented people. And > > I thank them everytime I make some swarf. > > > > My $0.02. > > > > > > > > -----Original Message----- > > > > From: Jon Elson [mailto:el...@pico-systems.com] > > > > Sent: October-07-17 8:01 PM > > > > To: Enhanced Machine Controller (EMC) > > > > Subject: Re: [Emc-users] MachineKit on the BeagleBone Black > > > > > > > > On 10/07/2017 12:38 PM, John Dammeyer wrote: > > > > > Enter the MachineKit LinuxCNC port and in some ways I feel like > > > > > I've > > > > > > stepped > > > > > > > > back into the dark ages. Simple things like how do I see if a > > > > > limit > > > > > > switch > > > > > > > > is closing or not. > > > > > > > > Use Hal Configure, or HalMeter to just see one at a time. > > > > You can add these to the PyVCP virtual control panel while > > > > setting up. > > > > > > > > > There doesn't seem to be a screen with hardware > > > > > interface. Etc. > > > > > I can see in the .ini file where I can set max override but not > > > > > max jog speed. I'd like to be able to output max step rate and > > > > > verify that everything else is working. > > > > > > > > The maximum speed is in the [TRAJ] section of the .ini file, > > > > MAX_LINEAR_VELOCITY > > > > The jog speed slider cannot be set above that. > > > > > > > > > So is MachineKit just an interesting exercise for the College or > > > > > > University > > > > > > > > level? To show CNC can be done with a 1GHz 32 bit ARM? That the > > > > > real solution is LinuxCNC on a 1GHz PC (or faster) with an > > > > > external > > > > > > controller > > > > > > > > that can be set up with the Stepping Configuration program? > > > > > > > > Machinekit is almost identical at the user's level to > > > > LinuxCNC. That includes what you can see in > > > > HAL. The GUI is a bit sluggish on the ARM CPU, but it is > > > > tolerable. You do have a wider selection of > > > > motion hardware interfaces on a PC. The PRU stepping scheme > > > > on the Beagle Bone is nearly as good as > > > > external hardware step generators. > > > > > > > > Jon > > > > > > ---------------------------------------------------------------------- > > >------ -- > > > > > > > Check out the vibrant tech community on one of the world's most > > > > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > > > > _______________________________________________ > > > > Emc-users mailing list > > > > Emc-users@lists.sourceforge.net > > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > ---------------------------------------------------------------------- > > >-------- Check out the vibrant tech community on one of the world's > > > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot > > > _______________________________________________ > > > 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) > > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > > > ---------------------------------------------------------------------------- > -- > > Check out the vibrant tech community on one of the world's most > > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > ---------------------------------------------------------------------------- -- > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
