It was some years ago when I tried it, it was fine on thicker sheet, but not thin sheet, like I said, I expect there have been improvements in the trajectory planner since then.
The basic problem with plasma is it needs to be kept burning and metal passing at a constant speed. You can't just stop .. well, you can, but the arc will eventually fail. In thick sheet, with slow speeds, you can get away with it, and indeed the decel and accel to/from the stop at slow speeds are fractions of a second. In thin sheet at 6m+ a minute, decelerating to a stop and starting up again is noticeable and can lead to loss of arc. I was building the machines commercially at the time, and it did cause headaches in thin sheet with high current machines, but it's probably fixed now. On Sat, 8 Jan 2022 at 13:24, Rob C <rclandro...@gmail.com> wrote: > linuxcnc works just fine with plasma > > take a look at PlasmaC. > > lots of users including many for commercial purposes. > > On Sat, 8 Jan 2022, 12:36 Robin Szemeti via Emc-users, < > emc-users@lists.sourceforge.net> wrote: > >> I built a few plasmas with EMC, the trajectory planner was a problem at >> the >> time with it not being able to smoothly keep going between IJ arcs. This >> can cause problems in thin sheet ... maybe it is better now. >> >> I always had trouble keeping the HF from the arc start out of the >> electronics. >> >> On Sat, 8 Jan 2022 at 09:58, Rob C <rclandro...@gmail.com> wrote: >> >> > you could put sides on it that will catch any sparks, or an enclosure >> > around it, same as I have for a 3d printer so it has its own heated >> > environment. >> > >> > you could also add a water table that will catch all downward metal >> swarf. >> > >> > On Fri, 7 Jan 2022, 21:51 Thaddeus Waldner, <thadw...@gmail.com> wrote: >> > >> > > Use a submerged torch. This will also take care of the smoke. >> > > >> > > >> > > Thaddeus Waldner >> > > Newdale School >> > > Elkton, SD 57026 >> > > ________________________________ >> > > From: Nicklas SB Karlsson <n...@nksb.eu> >> > > Sent: Friday, January 7, 2022 3:13:17 PM >> > > To: emc-users@lists.sourceforge.net <emc-users@lists.sourceforge.net> >> > > Subject: [Emc-users] CNC controlled, plasma torch >> > > >> > > Anyone used Linuxcnc with plasma torch here. >> > > >> > > >> > > There is another major problem, one third of building is allocated for >> > > firewood storage. Need a good way to keep sparks away from it. >> > > >> > > >> > > Nicklas Karlsson >> > > >> > > >> > > >> > > _______________________________________________ >> > > 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
