but they could just as effectively, and probably far more easily, be cut from wood. so long as they are at least, say, 10mm thick they will stay parallel to each other.
I made another one using just big washers but that was cack
I cut two additional smaller wooden discs (fit inside the HS cups) to centre the press the avoid the slipping off centre problem.
I cut two additional smaller wooden discs (fit inside the HS cups) to centre the press the avoid the slipping off centre problem.