Havent personally cast a helmet, but there are a few advantages over printed items:I'm just curious. I see a lot of people saying they are "casting this helmet" or that helmet.
Why? What are you expecting to get out of casting whatever helmet you have so it is resin instead?
Or to put it another way... What's wrong with the printed helmet making you want to cast it?
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1: once you have the mould, you can make many replicas.
2: no seams, aka no weak points along the build. Its cast as one whole item.
3: dependant on what resin/material you used, it may well be much more resistant to damage than your print, and withstand significantly higher temperatures. Aka leave it in a warm car and itll be fine, unlike your PLA helmet which will look like a purchase off of wish after about 20 minutes. Theres currently a guy im following on insta who is using Aguilars files to cast the same in some hard rubber. They are *extremely* resistant to damage.