I tried some casting! These keycaps haven't turned out perfect - the corners didn't have enough resin, not sure why. But once they're fully cured in a week they'll be cool to try out!
The moulds I've made have turned out really well but I have a long way to go with the casting. I think it would help to change to an epoxy with a mix ratio closer to 1:1, so there's not a really tiny amount of hardener to measure out.
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