Thank you so much, Mr Heskett. I will build the system myself. It should be a good learning process for me. I browsed your website. It's amazing. America is GREAT! :)
On 08/11/2018 06:24 PM, Gene Heskett wrote: > On Saturday 11 August 2018 04:49:02 steve A wrote: > >> Hello, every one, >> >> >> I want to run LinuxCNC without GUIs on a small board, like Raspberry >> Pi 3B or BeagleBone Black, with a GUI on another device via network. >> So, I don't need many required packages determined by >> "dpkg-checkbuilddeps" which occupied large storage space. Is there a >> tutorial to do that? >> > So use a bigger sd card on the pi 3b. Size of the installed system is > then not a problem. With a 32 or 64G card, wearout is years down the > road. > > WRT the remote gui, the lags in the video are horrible, about 1 frame a > second. The pi can manage about 7 or 8 frames a second on its own and > I've gotten quite used to it. And according to the monitoring tools, the > pi is loafing while doing it. The internalusb-2 pinhole for data is the > lag problem. Fortunately, the spi interface is direct, so the spi to the > controller card can be written at 42 megabaud, and read at 25. rpspi.ko > handles all that flawlessly here. I'm running a 70 yo Sheldon 11x36 with > it. Quite well in fact. >> By the way, I want to use Preempt-RT. Can anyone give me some advises? > Subscribe to the linux-rt list at kernel.org and wait for the next > announcement of a working version, download the src's, edit the config > to get rid of the stuff you don't need and make pkg-target, where target > is an installable deb or whatever. Its beta so expect breakage. > > Or, if you have a heck of a big mailbox, I can send you a dd installable > image from my card as of about 6 weeks ago. Or maybe I could put it on > my web page where you could grab it. All that would take is a softlink > to where its at now in /usr/src. But its not compressed, 30,255 > megabytes. Tested by writing it to a 64G card, works fine. But it will > take a while to download as my upload speed is only about 2 megs/second. > Cable modem for poor folks. No clue if xz could handle that w/o damage. > You will get gui stuff that I've done which may or may not be to your > taste, and which will need a couple encoder dials on the apron and some > mode pushbuttons too. Rather than preserve the cranks, I've made jog > wheels out of the encoders, so I can drive it by hand too at 1,2,5 > selectable speeds. Encoders are from mpja.com, $20/copy. If they aren't > there, you can also use the keyboard. Even with my image, it will be a > slog to do because I didn't start with a usable machine, so much of the > conversion is my own design. > >> Thanks! Have a good day! >> ---------------------------------------------------------------------- >> -------- Check out the vibrant tech community on one of the world's >> most engaging tech sites, Slashdot.org! http://sdm.link/slashdot >> _______________________________________________ >> Emc-developers mailing list >> Emc-developers@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-developers > > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
