What stepper motor size (torque)

[Lee Roberts]

Thanks irving, you may also like to read this Darren:

some light bedtime reading...

Abstract
This tutorial covers the basic principles of stepping motors and stepping motor control systems, including both the physics of steppers, the electronics of the basic control systems, and software architectures appropriate for motor control.

http://www.cs.uiowa.edu/~jones/step/index.html

[ZeroCount]

After an unplanned break Thanks for the info, looks like stepper motor choice is a bit more complicated than I thought :(.

Been looking in EBay hoping for a bargain, but a bit scared now to spend around £100 on quite possibly the wrong motors.

Thanks for the info and link, time for some reading I think. Fortunately I'm not completely lost in the world of Volts, Amps, Henries, - I used to work in electronic engineering, just have to remember all the bits ;)

Thanks again