Today we started our modular oven build. I have been reading a lot of posts on the forum and getting ideas. We have decided on a 30" oven. After seeing Ironpony's thread on his build, I have decided to make a form and cast my own pieces. My dad and I started making the interior form today. We cut pieces for inside the dome and the oven opening. We assembled them and ran some rebar wire to support the wire lath that will be covered with plaster. This will serve as the inside form.