On Sunday 02 August 2020 12:51:31 Chris Albertson wrote: > Just print a test object. If the motor misses steps you can hear it. > > Also, you can adjust the acceleration limit in Cura. I think this is > the best place to do it too. In Cura you know what you are printing > and can adjust based on the size of the part and if it is very tall or > very wide > > The 32-bit board does not really address this problem. What it mainly > gives you is much more memory. In Linux CNC we control what features > are used by config and hal files. But Merlin is configured at compile > time. You can enable and disable features and set parameters on one of > the dot.h files then you compile to binary and load in the flash ram. > On an 8-bit controller you run out of flash ram if you turn on > everything. > > The big feature many people want that just might push them over the > limit of an 8-bit controller is automatic bed leveling. To use this > you install a sensor on the print head that measures bed height and it > probes the bed in a grid pattern. But some of the features you don't > need such as supporting different types of printers or dual extruder > heads or filament break sensors, changing filaments and so on. As > long as you can run what you need there is not much gained by going > with 32-bits. > Thanks Chris.
> On Sun, Aug 2, 2020 at 8:02 AM Gene Heskett <ghesk...@shentel.net> wrote: > > Greetings all; > > > > Several question mark below. > > > > Those glass plates for my ender-3 Pro's build plate use have > > arrived, and I'm somewhat taken aback by the mass of a 230x230mm by > > 4mm piece of glass. This at least doubles, likely more, the weight > > the y motor has to manhandle, in my mind affecting the ballistics of > > its movement. No glass clips or instructions came with it although > > the glass was packed to survive a tactical nuke, So I'll raid the > > laundry room for some spring clothes pins. Plastic, lighter than the > > old wooden ones, but I stuck a couple on the front of the bed and > > the heat isn't bothering them. > > > > The stock Merlin driver has some adjustments for both acceleration > > and jerk. Accel is currently set at 500, sounds pretty instant to me > > and jerk is set at 8 but thats a new term for me and I have no idea > > of how a change to that effects the machine. > > > > Given the increased mass to move, is it even possible to keep the > > working velocities at the currently set values, or is there a way to > > determine what is optimum for this added mass it has to move? > > > > I'm assuming changes in the ballistics would have to be set in the x > > axis at the same time to keep it from bending corners. > > > > Or, would I be better off spending the sheckles for one of the > > improved 32 bit driver boards I see being offered? Power supply > > might come into play too as its only 24 volts now, which will effect > > its accel and ballistics envelope too. > > > > Discussion, educational/reference URL's all welcome. > > > > Thanks all. > > > > 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) > > If we desire respect for the law, we must first make the law > > respectable. - Louis D. Brandeis > > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > > > > _______________________________________________ > > 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) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
