i made one with #9 wire for the "jaw". it works but seems too bend to easily. one of the others i used a spring pin from a #2 double coil. i had 4 coiled some and had extra pins left over. they are about the same dia. but much stiffer.
the spring on the ones i made are bolted down. a 3/8-16 bolt with a washer will hold the spring.
the arm for the trigger i used two different materials. one was #9 wire and the other was a 20 penny nail. both worked fine.
they are cheap to make, they just take time. like i said before, the springs are all i bought and they only cost a buck 50. i looked at other springs but could not find any localy cheaper then the combine reel springs.
some time in the near future i will make a couple with square tubing and post some how to pics. just not sure when i'll get the time!
I used to have superpowers… but a therapist took them away.
The voices in my head may not be real, but they have some good ideas!