How do you keep a masks eye holes and such in slicers?

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1

I’ve made a few masks and when I pull them into a slicer it repairs and closes the eye holes and such since its considered " non manifold edges "

How do I make them manifold so I can just print them without needing to use negative space models in slicer,

2

I think Holger’s video here has the solution for this - the part applicable to what you’re doing starts around 7:40 - SelMask the whole object, then extract w/Closing Action - Shell. The whole video is worth watching, as he takes the time to explain hollow objects/holes using backface color, which seems to be a common question. Hope it helps.

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3

Thank you! I will be checking it out!