Have any of you been using Long Motors Chinese stepper motors or motor/driver cnc kits? They sell on Fleabuy under the name LongMotors88 (and other similar names) as well as Wantai and Want Motor.

What do you think of their products?

I'm particularly looking at larger steppers for a bigger machine- NEMA42 size.

I emailed them several times to get something as simple as a torque curve for their steppers and they were rather evasive and wouldn't provide the curves.

Thanks DIYers