Happy Birthday Gene! --J. Ray Mitchell Jr. [email protected]
"Much of the social history of the Western world, over the past three decades, has been a history of replacing what worked with what sounded good." -- Thomas Sowell On Sat, Oct 4, 2025 at 5:36 AM gene heskett <[email protected]> wrote: > On 10/3/25 20:35, Sam Sokolik wrote: > > I will add.. I have been running a rpi4+7i92(ethernet) for the last 5 > > years on a small mill. I have done some pretty crazy stuff with it. > Once > > I got it working (again - 5 years ago) I have had 0 issues with it. It > > just works. (even though a bit underpowered) > > > > The rpi5 is night and day. I have used it in a hal only monarch > spindle > > drive controller, Plasma table and also the same small milling machine. > > No issues. > > > > sam > I wonder how the bananapi-m5 might work with my setup, with a 7i90HD and > a bunch of 7i42TA's? I currently have an rpi4b running the Sheldon. > I am concerned with the power draw of the off-lease dell's I am using 3 > of to drive my other machines but the draw is around 300 watts a > machine. Where the rpi5b and its monitor total about 23 watts. That's a > considerable power savings I can see in my electric bill. > > I'm also using a group of the even faster bananapi-m5's to drive 3d > printers, which seem to have decent latency for that. They are all > running armbian, currently based on the arm64 version of ubuntu, full > desktop install. There, the launch speed is limited by the u-sd card > bootup, but the apps once running only have one speed limit, how fast > the hotend can melt filament, which limits it to around 200mm/second > printing speeds. > > And I've had nothing but headaches from bookworm on this box, so when I > install next, I will probably switch to ubuntu, full desktop flavor. So > I'm hoping that at some point in the coming year, you generate an > install iso based on the newest ubuntu LTS. My experience with the > arm64 in the form of armbian has been 1000% more stable, it just runs > from power failure to power failure. A UPS makes that forever, but > doubles the power draw. Nobody makes a UPS small enough for the pi's. > > I made it another year at around 7AM local time. I'm now 91 yo. > > On Fri, Oct 3, 2025 at 12:50 PM Sam Sokolik <[email protected]> wrote: > > I would normally say an PC is the best route (and I would probably still > > use off lease machines) > > but > > I have been playing with a few rpi5's and they are quite amazing. The > > latency and performance is up there with a normal pc.. > > It could probably even do decent software step generation. ( I have used > > software PWM to run amc drives.. ) Coupled with a mesa card - even > better. > > It is a known quantity. The latency is stable and good. > > > > https://photos.app.goo.gl/dELrZMq6Sb7Qk7ju5 > Looks nice. Better than the rpi4b, but it seems more than adequate for > an only 2 axis drive setup. Around 12 u-secs until firefox runs at the > same time. FF hogs IRQ's. > > Cheers, Gene Heskett, CET. > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Don't poison our oceans, interdict drugs at the src. > > > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
