It really doesn’t matter what a keycap is made of, as long as it’s strong enough to last and won’t hurt the switch. As far as resin casting goes, you can buy keycap molds pretty cheaply ...

Many pre-built keyboards come with keycaps that are sculpted to cup your fingers and feel comfortable to type on. If you buy keycaps separately, you can find a whole world of different profiles ...

Luckily, there are ways to get an idea of how noisy a mechanical keyboard will be before you buy. Mechanical keyboards ...