38 minutes ago, saifulk9 said:
This happens to me, too. If your file is somewhat greater than 5 MB or something, it starts to get laggy, and at around 10 MB, or again, something like that, Cura crashes because I think, and this is only an assumption, that it reads every triangle on the file and fixes the ones that need to be fixed, so more triangles mean more work. That's just what I think, I'm probably wrong. If Cura crashes, then, I just use Meshmixer to make the object solid, or just leave it be, and if it really needs to be water proof, then I'll just add some layers of epoxy or another waterproof substance inside to block water from coming in or out. When your model is not manifold, it doesn't really mean anything, only that, well it's not waterproof, so get it fixed in Meshmixer or add some stuff later. I'd suggest Meshmixer since that's a helmet and you're gonna be wearing that, so it would be pretty hard to breathe it. I'm not that good in Meshmixer, so for me, there are artifacts which make the item less detailed, but maybe you can find a way around it.
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grazuncle 0
This thread help me a lot.
A client sent me a model and swore his design was 'watertight' but Cura and Mesh tools said no. I looked up non manifold and found something to look for .. LOL
In the end i opened up his design myself and sliced it in half with my CAD program and sure enough there was two edges just like this example
he adjusted his design and all was well in Cura.
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