Anyone know where I can get rods of foam? Strong enough to not move when laying up prepreg. Oh, and 355 f capable temp rating.
Saw strips of foam (square). Make a jig where you can push the square foam through (tight fitting round pipe) and install a router on the end of the pipe, with a straight router bit exactly on the foam.
Attach the strip of foam to a cordless drill, push it in the pipe, turn on the router, rotate the strip of foam with the drill, and slowly push trough.
Result is a nice and round piece of foam.
The luxury version has a second pipe (smaller in diameter) after the first pipe, to guide the round foam away from the router.