Took delivery of new set of motors yesterday. It is model KL23H276-30-8B (8-wires, 3A/phase, 280 oz.in), ordered direct from China. Several US online sites also sell identical motors.
I'm yet to fix it to the Sherline. Tried hooking up to the driver (PICStep+Mach3) and result as follows:
- With 2A/phase @44V, bipolar series, 1/4 step: reached more than 2000rpm (80ipm) before stalling.
- With 2A/phase @44V, half coil, 1/4 step: reached more than 1250rpm (50ipm) before stalling.
Photo below show the two motors side by side for comparison.