Would it be too hard to make Xbox 360 style buttons with embedded letters?
Way more work than I'd want to put into it. WAY more.
I was thinking like pouring tiny bit of resin then embedding the letter and then filling the mold.
Wouldn't that work?
Where would I get the letters from? I'd still be stuck makin a 2nd set of molds to create the letters, which puts me right back into the "giant waste of time" zone.
Do you mean like taking a letter cutout and sticking it in clear resin? Then sticking the mold together to lets it dry?
If that's what you mean then I would just say no because you would have a high chance of the letter migrating when you put the mold together and it drying sideways/crooked/upside down/etc...
Basicly yes, but I was thinking even simpler hand casting that only uses one mold.
Pour bit of clear resin, let it set a bit, then carefully using tweezers embed the letter in correct position, then continue pouring colored resin carefully using needle and syringe.
If I looked at the Wiggy's buttons correctly the look solid so no need for other side mold, right?
Everything that Palmer said and illustrated is spot on. No way to do it with one mold. In fact, Palmer's method is a lot simpler and would require fewer molds that your method. The Molds are 2-sided. The buttons have indents and whatnot on the bottom that need to be present for the button to work correctly. I fill in the cavities just because A) they aren't needed and only served to save material, and B) if I'm going to make clear buttons, then they look far better without the empty cavities

This is what I would need to do in order to make 360 style SNES buttons:
• CAD model the lower half of each button (the white part with the embossed letters).
• Have high resolution prototypes produced (my printer will NOT print these at a usable resolution).
• Make molds from said prototypes (2-piece).
• Make a 3rd half mold for the over casting (the colored bit that would finish of the part).
On top of that, the likelihood of me pulling a good, full set from those molds would be quite slim. It's really tough to get 100% air bubble free parts when casting, especially on this scale. About 15-20% of the parts I cast end up in the trash for this reason. The smallest bubble can ruin an entire part. Not to mention that I'm back to mixing 5+ colors to make a single set. No thanks.