Gripper

based off of gorilla gripper....

so far there are three grip sizes uploaded ..1/4" 1/2" and 3/4"
you will need 3 4-4.25in 1/4" bolts and lock nuts and washers ( best to use ones with no bigger than 5/8 in out side diameter) to fit and you will also need a pvc or metal pipe 3/4" inside cut to 3.5 inches and some self stick 1/16" foam

just uploaded new thumb designs for better easier hold