"Projects" at georgesbasement.com

4. Adrian Mariano's PEXTO brace.
Adrian's picture of the brace taken apart
Adrian's jaws were just wired together
Jaws with standard spring design
PEXTO vs. GB spring design
PEXTO jaws with GB spring
Adrian's picture of his Smith-patent brace.
Adrian's picture shows his  jaws just wired together ...
A PEXTO-style spring was too weak.
My new design next to the old one.
Now the spring will work right.
I found several spring arrangements among my spare PEXTO jaws.  Adrian's jaws were designed for the worst arrangement.  The extra loops give the spring a greater range of motion.