to paraphrase my Physics 101 professor:
give me a long enough lever and a place to put the fulcrum, and I can move anything.
that is to say, the small hobby servos are fine -- use some gearing and/or levers to actuate the "wave arm" from them.
to paraphrase my Physics 101 professor:
give me a long enough lever and a place to put the fulcrum, and I can move anything.
that is to say, the small hobby servos are fine -- use some gearing and/or levers to actuate the "wave arm" from them.