How are you picking up the tetras?

[Mark Pettit]

Originally Posted by Ianworld

We're picking it up from the top, and then rotating it back so that it effictivly grabs it as if we grabbed at the bottom. I think thats the easiest way to explain it.

We get into the apex and as the arm goes up the tetra rolls back and nests on a brace that touches the tetra in five places including an eight inch span across the bottom. The first one we built used a tennis ball in the apex and worked well but we redesigned and built a better and stronger one. We don't know if we want to use a ball on then new one or not.