On Wed, Dec 18, 2019 at 05:41 AM, <simingx@...> wrote:
In any case, the 1.68A motors will be better (as long as your motor drivers can handle them) as you can have higher slew rates. My mount does 2.9 deg/s into a 2400:1 reduction at 24V.Current is not the only factor.
Gear reduction plays an important role.
For example, my mount has a 180:1 wheel.
The motors I use have an integrated 18:1 gearbox, so overall 3240:1 reduction.
I can do 2.9 deg/sec despite the motors being tiny NEMA 11, and I run them at 0.65A and 12V.
And all that is with the STM32, and microsteps goto of 1/4, while tracking is 1/16.
That is why I recommended 10:1 or 15:1 geared NEMA17 motors. More reduction is better (up to a point).