I'm trying to build a rotating arm with a 90° angle attached to a servo. To better understand what I'm trying to do see my attached diagram. I was wondering if these 90° tube clamps would do the job:http://www.servocity.com/html/90o_clamping_tube_hub.html
I would have one of the clamps attached to the servo shaft with an aluminum tube extending perpendicularly and a second clamp attached to the end of that with another aluminum tube attached. Has anyone used these clamps before? How powerful of a servo would I need if the two aluminum tubes were about 8 inches long?