I have removed the unwanted interior fill required for 3d printing and am left with just the exterior faces.
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I also decided to make the ab plate strictly a foam template for mobility’s sake.
I then was left with the unfathomable tasks of the original mesh. (453,663 remaining triangles)
Which is far too unreasonable for pepakura to manage.
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So it is time to Decimate some triangles.
a few minutes in Blender and I have two significantly more reasonable files to work with.
First up is what I am calling the high-detail version, which is just 10% of the original mesh.
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Then the Medium detail version at just 5% of the original mesh:
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I think I am going to try working with the Medium detail version first and see what kind of end result the Pepakura model results with.
But this is the progress for now!