I had learned how to use the Vacuum Former at TechShop San Jose, and needed a project to make sure I remembered how to use it. Also, I wanted to test the theory that a hole in the center of a burger will help it cook more quickly and/or evenly.
Herewith, the delicious results of my experiment.
Step 1: Cut the Positives Out on the CNC Wood Router
Step 2: Vacuum Form the Molds
After a few minutes of flexing and pushing, I had molds for my gear-shaped burgers.
Step 3: Molding the Burgers
First, I sprayed a little non-stick spray into the mold. Next, I smushed the meat into the mold, flipped it over and flexed it until the burger popped out.
I made a couple each of the hole and non-hole burgers.
Step 4: Grill 'em and Eat Them!
I grilled a couple and flipped them at the same time. Once done, I cut them open to check done-ness. The ones with a hole in the center were more done, but there was not as much difference as I had expected. Both styles were delicious.
One surprise was that the patty with a hole in it was more recognizable as a gear after cooking.