Thermoformed heart

❤️ Thermoforming Heart Mold – Friction Fit DesignAfter watching several interesting videos about thermoforming, I decided to experiment and design my own mold with two main goals:Create flat, thermoformable partsEnsure both sides of the heart are identicalUnlike many existing designs, this mold uses a friction-fit frame system to hold the thermoformed part together — no glue or fasteners required.🧩 Design OverviewThe mold consists of 3 printed parts:Main moldBottom frameTop frameThe two frames form a sandwich that holds the thermoformable sheet securely during heating and forming. I suggest to use PETG for the mold. 🔥 How to UseAssemble the bottom frame, the thermoformable sheet, and the top frame together.Apply heat to the center of the heart only until the material becomes shiny and just barely solid.⚠️ Important: Avoid heating the edges near the frame.Overheating the sides may warp the edges and prevent the heart from fitting correctly into the friction frame.Place the heated sand