another way to variable speed

[mikesknives]

i came across this (http://www.lovejoy-inc.com/catalog/vsd.pdf) while building my grinder someone may find it of use,i've no idea how much they are but my scheppach bandsaw uses one to vary the speed.

cheers

mike

[ZDP-189]

They definately look interesting. Meant to be "inexpensive" solution. I loke the moveable motor mounts too.

[Mike Blue]

A good alternative to the rheostats that cut motor rpms but also cause torque loss and not nearly as expensive as variable frequency drives for three phase motors.

Can you find a junked exercise treadmill and use the parts from that?