Anyone have suggestions as to what servo to use with the Walthers 90' turntable? It's not an immediate project, I'm just looking into it. The $1.25 Arduino-driven SG-90 servos for turnouts are working great so far.
Julian
Modeling Pre-WP merger UP (1974-81)
You might want to look into a 'stepper' motor controlled by an Arduino Motor Shield. There are lots of circuits/software available to do this(R/C Cars and Battle Bots). The stepper motor allows very precise control of your TT bridge...
Jim
Modeling BNSF and Milwaukee Road in SW Wisconsin
A stepper is what you want. An SG-90 servo will never turn the turntable, at least without a LOT of reduction gearing and it would be VERY slow. Also it will only turn partway, not all the way around. There are continuous rotation servos, but a stepper will be the best option.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.