On Mon, 4 Nov 2024 at 05:46, Ralph Stirling via Emc-users <emc-users@lists.sourceforge.net> wrote:
> Motor: RI85 model 2Nm rated, 5Nm peak, 48V 16A $178 I like the idea of frameless motors, and I have two. One is currently in toolpost grinder, but I am struggling to drive it. (I have blown up an STMBL and an AliExpress BLDC driver[1] so far during my experiments) (My other frameless motor is a 2kw monster that looked smaller in the auction photos, and may one day become the core component of a surface grinder) I suspect that 2Nm might not get you very far. Maybe set up a torque wrench on your lathe to see if you can take a decent cut? Having said that, FSWizard is saying that a 0.5mm cut at 0.125 mm/rev on a 25mm steel workpiece is only 160W of spindle power, so maybe my hunch is wrong? [1] One of these. Tempting as it is mains-powered, not needing an external power supply. But also almost entirely undocumented. https://www.ebay.co.uk/itm/315873192042 -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
