Hi!
I own a micro lathe converted to CNC and working fine, except it lacks torque when parting-off and threading deeper threads. (when the pitch gets close to 1.5mm). I already have a index pulse on the spindle and closed feedback, and 6:1 pulleys for threading. But still I feel the motor is not enough.
My DC stock motor is 150W 210VDC, 4000 RPM max and runs at 0.7A max
I have two set of pulleys (2:1 and 6:1)
I plan on replacing it by a brushless one (with it´s driver), but I´d like to know if the brushless specs are enough for a mini lathe. And it´s torque also.
The motor is 785W, 310VDC, 3000 RPM, 2.5N.m torque.
If I replace the motor, at least one set of my pulleys will need to be re-done, as the RPM is not so fast in this new motor,and the shaft is thicker.
I´ll put in a table all the specs, so you can read it easier:
(Motor Model) LK86BL13031 Number of Phases 4 voltage VDC 310 Rated speed rpm 3000 Rated torque N.m 2.5 Rated current Amps 3.3 Rated power Watt 785 Max torque N.m 7.5 Torque constant N.mlAmps 0.8 Back EMF V/Krpm 62 Rotor inertia Kg.mm2 320 Lenght mm 130 Weight Kg 4.3 Flange mm 86 Shaft Diameter mm 14
Would this be enough for hobby use?
Regards, Rodrigo