UPAM3D 01V1 Protomolde

thingiverse

This model serves to make a mold in silicone and replicate the protection mask support selected by Madrid's Hospital Gregorio Marañón. https://twitter.com/3d_maranon/status/1242177410759524355?s=20 In turn, it is based on a design from https://twitter.com/erikcederb modified with https://twitter.com/MakerGal3D. https://www.youmagine.com/designs/protective-visor-by-3dverkstan Since it's not a resistant piece, no need to use much plastic, just the necessary amount to achieve a surface that can be smoothed out so that the parts extracted from the mold are as perfect as possible. The process is simple: 1. Print the three pieces. 2. Place the model part between the wall pieces. It can be held in place at the bottom with packing tape or similar. 3. Pour silicone while ensuring it has minimal air. 4. After curing according to the manufacturer's instructions, remove the mold. Clean up any remaining residue. 5. Reinstall the model for the walls to serve as a form and minimize any alterations due to resin pouring. 6. Pour polyurethane resin (see note) and wait until it reaches sufficient hardness to demold. 7. Wait for it to cool down and repeat the process. Note: Parts extracted in resin may not be very flexible and can break under pressure. A solution is to embed some wires running along the entire shape, which adds resistance when embedded in the resin. Place small resin pieces so that the wire remains halfway through the mold.