On Fri, 6 Nov 2020 at 16:50, Thomas J Powderly <[email protected]> wrote:
> both blew up as i approached the 35000 rpm of the trim router. 3600rad/sec > Magnet is 5mm dia x 3mm high neodynium on a 10 mm shaft, between end > bearing and brush. 0.4g at 5mm radius = 25N force, or 5.5 lbsf. Glue might work. Or possibly a cable tie, but at that speed you might want to balance it with another (pointing the same direction) to balance it out. a diametrically magnetised ring would have less tendency to fly off: https://www.first4magnets.com/circular-ring-c37/20mm-o-d-x-10mm-i-d-x-5mm-thick-n42-neodymium-magnet-3-2kg-pull-p3842#ps_0_4030|ps_1_3098 -- 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-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
