The last component of the tooling was a continuous plywood frame approximetely 3 inches wide that covered the shape of the steel door frame and adjacent flange. The object of this plywood frame was for clamping over the heated Plexiglas sheet while forming the bubble.
The Fabricator also instructed me to add a silicone bead around all joints and edges to make the Tooling as air tight as possible. With both Left and Right Tooling Fixtures completed it was time to bring them over to the Fabricator for the forming operation. The goal post shown in the photo above was for measuring the maximum height of the bubble during forming.