Bro, on the ends of the clamp, the part where the two pivoting ends are, do you have additional metal plate there to spread the force of the load on the heating plates so it's not focused on a very small area?
Are you using a new c-clamp every time you modify your design?
Oh and new parts list is needed, hehe
From what I gather, this is what I'm looking at:
10" Wooden Hand Screw Clamp for stability
11" Milwaukee C-Clamp pliers
JB Weld
High temp epoxy for the backside of the heating plates for more strength
Small 1/2 inch to inch metal or pvc tube and a dowel to make pucks with
What I'm thinking of doing is to jb weld some small metal plates to the ends of the c-clamp pliers and drill two holes in each plate. I will then figure out a way (with a jig or just good measurements) to sort of cast two bolts in the epoxy, not touching the heating surface but in the body of the epoxy, sticking up to mount to the plates that will be jb welded to the pliers. That way, if the heating plates fail, I can just unbolt them and put new heating plates on without trashing the rest of the unit.
What do you think?