On Wed, 1 Apr 2020 at 10:49, andrew beck <andrewbeck0...@gmail.com> wrote:
> It is just that I think the thin wave gear in harmonic drives is not strong > enough to hold up to heavy cutting forces. FHA-25 is rated at approx 200Nm. (it varies with the reduction ratio) Playing with FSWizard putting in a 16mm end mill at 4000 rpm in aluminium I am seeing 3kW of spindle power and 620N cutting force. So the FHA would be OK with those parameters and a 300mm radius workpiece. (600mm dia) I understand your concerns, but the numbers are reassuring. -- 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
