Ejected two-part silicone travels down to a double-barrel mixing nozzle, which extrudes silicone into the top of the mold. Naturally, we were going to suggest automating the lever operation ...
Our favorite tip has to do with the way [Eric] makes this a reusable two-part mold, which is more akin to injection molding. To pour silicone for the second part and get it to separately nicely ...