Servo Suggestions for Small Laser Turret

So we have this for our cat and while it is fun for the cat, it is not challenging enough. So it is time to bring on the Arduino, two servos, and a laser.

http://store.petsafe.net/frolicat-bolt

My goal is to build a turret using kydex plastic that would mount to one of the big round servo horns that comes with this servo: https://www.sparkfun.com/products/11965. I would then have a micro servo on the turret to which i strap a hobby laser to: https://www.sparkfun.com/products/9065 and https://www.sparkfun.com/products/594.

So then I realized that my servo at the base of the turret is only 180 degrees. When I looked at the full rotation servo, it appears that their is no positional feedback. With wanting to keep this simple and not have a gear box, how would achieve >180 degrees but < 360 degrees. Full rotation is not required because of the wires that that must come down from the gimbal to the arduino.

Thanks,

Frank

I haven’t used them, but sail winch servos offer 3.5 turns and might be useful: https://secure.robotshop.com/ProductInf … =RB-Hit-53

jremington:
I haven’t used them, but sail winch servos offer 3.5 turns and might be useful: https://secure.robotshop.com/ProductInf … =RB-Hit-53

Nice!

I think that will do nicely. I can use a pin to prevent over travel.

I just found this… :slight_smile:

http://www.servocity.com/html/spt50_sub … _tilt.html