Quote Originally Posted by GeorgeD View Post
How much weight can a mid range stepper motor handle?

Basically I want the motor to push up a certain weight using a leadscrew to drive the weight upwards.

The information is that the motor will not be constantly operational all the time ie it will be idle more than operational for upwards lift and fine adjustment ofthe intend load.

This is for my project that I wish to make with a view to selling them on ebay and dependin how well they sell?

I've had this dilema myself, I simply got a torque rench on its lowest setting and tried to turn the screw and kept upping the setting untill it turned before it clicked then i read the scale on the torque rench, this gave me a NM reading as a guide and then went hunting for a stepper that had a higher NM spec, i expect there many more scientific ways of working this out, however i did this 14yrs ago and it is used a lot and has never failed!!

Rick