This would necessarily require valid geometry from the user.Īn alternative interpretation to satisfy existing slicers would depend on the designer constructing arbitrary simplified surface geometry to produce a manifold surface and then the slicer permitting the removal of certain surfaces. Where arbitrary thickness would come in is by selection which normals to expand the surface into to create G-Code paths. Such would still be the responsibility of the designer. This is not intended to repair invalid geometry with inverted normals. Below is an example of using blender's 'solidify' or thickening feature.Ī feature such as 'printing non-manifold surfaces to arbitrary thickness' would be a useful process for any industry adjacent to vacuum forming, mold making, working with topological data either generated procedurally or perhaps collected such as data from USGS. Trying to arbitrarily modify a non-manifold surface into a volume can be a destructive process, a complicated process, and is an unnecessary step. A non-manifold surface which is a valid geometric construct has all the data necessary to become a valid geometric object to generate CNC paths Mesh, normals. Not all models make sense as volumes or need to be manifold shells to be valid designs. All 3D printer brand / version + firmware version (if known)
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