Molds for injection
Have you tried using molds out of plaster, using a metal box and making the mold in plaster inside of it?
I’m sorry if this would obviously not work, I was watching the videos and thought this could work, and make replicating objects easier and cheaper. I really want to start this one day, but right now I don’t have means to do it and test this idea :D, maybe onde of you have tried it. Thanks 🙂
I have tried this with a aluminium box and silicone – it was not a great success as the silicone moved around. Perhaps plaster could work better.
Nice, thanks for your answer David. I’ve seen plaster with a glass like finishing, I guess that would stop the plastic from sticking to the plaster mold. I’m still checking in my area how can I make my machines cheaper so it’ll be a while until I can test it.
Just some more thoughts; the glasslike finish might not be necessary. If you worry about getting out the mold you can consider 2 things:
– Release agent; vasline works great.
– one time molds. One could cast an item inside a solid plaster box, inside the metal box. Remove from metal box, Smash the mold and hopla 🙂
Nice to hear the same ideas floating in my thoughts being discussed! Has anybody tried heat proof cement or quick cement made for repairing heating systems?
Nice, when I get my machines I’ll try that, thanks again.
You must be logged in to reply to this topic.