That's great information! Is there a tabulation of data such as your HAL scope results comparing the merits of commonly used CNC control programs.
Murray On Thu, 23 Dec 2021 at 15:51, Sam Sokolik <samco...@gmail.com> wrote: > Because linuxcnc is so flexible - I actually did some testing between mach3 > and linuxcnc when the new trajectory planner was being developed.. > > http://wiki.linuxcnc.org/cgi-bin/wiki.pl?NewTrajectoryControl > > This is using linuxcnc to sample the step/direction signals from mach and > linuxcnc to plot and graph acc/vel and also visualize path following. > > I also did it with grbl... > > > https://www.cnczone.com/forums/opensource-software/271966-grbl-logging-linuxcnc.html > > sam > > On Thu, Dec 23, 2021 at 3:34 PM Murray Lindeblom < > murray.lindeb...@gmail.com> > wrote: > > > I think there is more fear of the unknown rather than any technical > > challenge in using a Linux based solution. It's a new TV remote with > > different colored buttons. > > > > My concern is the precision of the resulting work using a solution that > > does not have real-time response to the control devices (i.e. how round > are > > your circular holes). > > > > Is anyone aware of measured results that are documented comparing the > > various styles of CNC conversion? > > > > Murray > > > > On Thu, 23 Dec 2021 at 13:05, John Dammeyer <jo...@autoartisans.com> > > wrote: > > > > > Everyone is probably partying or drinking egg nog this close to > Christmas > > > but on one of the local metal groups a new member posted that he was > > > converting his mill to CNC. > > > > > > His first posting: > > > "Just doing a cnc conversion to my Craftex knee mill, using the Acorn > cnc > > > board and Clearpath Nema 34 servo's, direct drive. Motor has been > > converted > > > to VFD, and just installed a rotor encoder to measure RPM accurately. > > Post > > > some pic's when I'm done. Now I just have to learn g-code." > > > > > > Here's my question to him: > > > "May I ask why you chose Acorn over say a MESA Solution < > > > > http://store.mesanet.com/index.php?route=product/search&search=7I76E%20> > > > and LinuxCNC running on a PC or Pi4. Granted Pi4 4GB is hard to find at > > the > > > moment but PCs can be had for next to nothing as well as LinuxCNC is > > free." > > > > > > And his answer: > > > "Did my research, liked that it was Windows compatible (sorry been at > > > computers too long and don't need to learn another set of headaches). > > > Additionally it is plug and play using the add on board from CNC4PC for > > the > > > Clearpath SDSK. Clearpath was to only choice based on the torque and > > built > > > in encoding and processing. Based on the basic encoder 0.000125 is > > possible > > > if all works as designed and the winds in the right direction." > > > > > > I checked and Clearpath motors are not cheap so I don't think money was > > an > > > obstacle. And I understand being a Windows type about not wanting to > > learn > > > a new OS. I've had a love/hate relationship with Unix/Linux since a > > PDP-10 > > > in university. No choice but to learn it for Beaglebone or Pi and now > of > > > course LCNC. > > > > > > But I wonder if it wouldn't be a good idea in the new year to develop a > > > build thread that takes a beginner through conversion of a mill to LCNC > > so > > > it appears to be turnkey like the perhaps the ACORN CNC approach. > > > > > > Comments? > > > John > > > > > > > > > > > > "ELS! Nothing else works as well for your Lathe" > > > Automation Artisans Inc. > > > www dot autoartisans dot com > > > > > > > > > _______________________________________________ > > > 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
