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Unfortunately, we haven’t had time to test the mould this week so cannot report back yet. Hopefully next week! However, what’s bothering me is that this mould, even if it works, would be a 1-off mould. Perfect for my one-off sculptures but not so good for making several parts/day.
Hi everyone! As @birdynamnam mentioned, we’ve build an injection moulder and today I finished the first mould that we’ll try (see pic). I’ve use heat resistant silicone rubber wrapped in plaster bandage and a strong stone plaster on the top to set the bush. I know already that the rubber will take the heat as I’ve been testing this for months in a lab oven before the injection moulder was ready. The question is now whether we’ll need to add vents, if the ‘bush set’ will be strong enough and also if we’ll get it right with the temperature and pressure.