For the rotary optical encoder we were using for position control here, it costs $85 to replace the beggars, and they do, eventually, break down. I've had a rotary optical encoder that produced quadrature for 270 deg, and something else for 90 deg. That is soooo hard to troubleshoot. That's why I'm vying for killing the rotary encoder position control scheme. In short, 55 cents for a position sensor seems like a very fine deal to me. --Brendan ----- Original Message ----- From: "Pic Dude" To: Sent: Friday, June 28, 2002 8:58 AM Subject: Re: [EE]: stepper "digital" knob viability > (b) Jameco has some small stepper motors, for as low as > 55 cents, in single-piece quantities. > > Cheers, > -Neil. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.