Hi Everyone!
I have a basic question about what RPM range I should be aiming to use from a stepper to drive a ballscrew via pulleys.
If we look at a torque curve example attached at 24V, we see in the <400RPM range the highest and roughly constant torque. Then >400RPM we see a downward slope develop where torque drops rather linear with RPM increase.
Remembering that Power = Torque x RPM, to me this linear slope suggest maximum constant power has been developed and so torque drops as RPM increases.
If we directly drive a ball screw from the motor I think it makes sense to use the highest torque range.
However we have a pulley ratio in this system, that will convert RPM to torque, so I think I should be aiming to utilize the motors maximum power range, not maximum torque range. I should gear my system to use the >400rpm range.
Is my logic correct?
Attachment 443056