I have a servo motor acquisition problem, I tend to buy servo motors from eBay just because they are cheap. A recent (ish) acquisition was an NSK Megatorque (RS1010, which means 10" dia and 10" long) This is rated at 147Nm (108 lb f) torque and for an axial load of 9500N (2100lbf) so is quite a beast. Currently I am using it as a glorified protractor to calibrate a Faro arm. :-) https://photos.app.goo.gl/J3yhuhQ7e2vbjDLg8 It has a very high-count encoder, thought he serial terminal connected to the drive only reports angle to 0.01 degrees.
The motor is an odd shape, the output flange is a ring, and there is a static tube inside that. Looking around on the web I found: https://forum.strojirenstvi.cz/viewtopic.php?t=21057 Which rather explains the odd shape. It seems to be a motor with two sets of coils. There is a toothed rotor rather like a stepper motor, with a toothed inner stator. Is this a variable reluctance motor? Do the outer magnets simply magnetise the rotor, or would there be more teeth on the outside? -- 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, 1916 _______________________________________________ Emc-users mailing list Emcemail@example.com https://lists.sourceforge.net/lists/listinfo/emc-users