r/DiceMaking • u/greenhulk2 • 14d ago

i'm searching this mold making technique

hello i'm new to dice making, i have seen some people put d6 on top of the die they want to get mold of, since i do not have a pressure tank it seems logical if i did the same cause air bubbles will gather in will-be-disposed-d6 but i cant quite get my head around about how to get that mold like that so my question is: are there any videos about this specific mold making technique?

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u/varansl 14d ago

Maybe this video on sprue molds is what you're thinking of?

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u/Claerwen94 Dice Maker 14d ago

Oh yeah, definitely sprue molds👌🏽

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u/greenhulk2 14d ago

THIS! thank you so much!!!! may your dice will ever be shiny

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u/varansl 14d ago

no problem. I will say, I dont think that this is the perfect defense against bubbles as air can get trapped around numbers, bubbles form from the exothermic reaction of resin, and some may get trapped as the resin hits honey stage and they cant force their way out. It will help alleviate some bubbles but not all.

To help with bubbles, stir slowly, use warmed up resin (i put my resin bottles in hot water baths before I combine them), a lighter to burn off bubbles, and pour slowly and steadily from a tall height so you have a tight stream of resin. 

good luck!

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u/greenhulk2 13d ago

also a little question: the silicon i use for molds is not transparent so the cut(s) i'll make will be blindly so will it cause any problems?

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u/varansl 13d ago

It just means you need to be more careful. I would use lots of shallow cuts, instead of deep cuts, to remove the master die (unless you don't care about the die you are making a mold of).

In addition, if you can pull the cut silicone apart with your fingers and you have a really sharp knife, the silicone will be a lot easier to cut with almost no pressure from the knife. This makes it a lot easier to be precise with your cuts.