I am looking for a fast stepper motor that is accurate and cheap
Seriously, I thought I had what I wanted (an A4988 controller, current limited with high voltage for better speed, and the 4V, 1.2A, 44oz-in motor https://www.pololu.com/catalog/product/1200)
Even though I might have been able to do with a lower torque motor, the 4000 pulse per seconds (1200 rpm) shown in the accompanying graph led me to believe I would get speeds on that order.
Instead, I am looking at around 1/3 of that number. I am using an arduino to send the signals, anything faster than this is stalling the motor with no load. I have a 12 V power supply with about 0.8 A across a single coil.
I will take suggestions as to what models or types of motors I need to look at. Think about 75% the speed of a human playing air hockey, but only needing to move along a single axis, with a very small load to move.
Am I way off base looking at steppers? Or expecting not to spend hundreds for such a device?