16 years ago
fly up and down about 30', and be positioned repeatably to the resolution of
The piece weighs less than 30 pounds, so 1 to 2hp AC servomotor with a
single phase 120v power/speed control would be perfect. (I'd settle for
single phase 240, but would really prefer to avoid three phase power.)
Ideally, it has a few ways to specifiy commands:
1) Go to a position at a certain speed.
2) Spool at a certain speed.
I could build this pretty easy with a DC motor, H-Bridge, and optical
encoder. But for once, I'd prefer to spend the money on an off-the-shelf
So: Anyone have a line on an AC servomotor and drive that would be suitable,
around (or under!) $1,000?
Anyone have a good source for slip rings? I need to send 12vdc (and maybe
video, if I have my way) down the winch, too.