At 05:18 PM 7/13/97 -0700, you wrote: >Stepper motors use a lot of power and don't deliver much power. You'll have >to gear them down, what a lot of work. Servos are really much nicer, and a >Scott Edwards serial servo controller(or three) would make interfacing easy. Try using a PIC with PWM module(s). You can use a PLD or demux to drive all the servos off one device. This is how I do it in my generic robotic controller. Andy ================================================================== Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 Hardware & Software for Industry & R/C Hobbies "Go fast, turn right, and keep the wet side down!" ==================================================================