Update 3D Print Toolbox documentation #104761
@ -23,8 +23,8 @@ Installation
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Description
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===========
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Blender can be used to created meshes for 3D printing.
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Meshes exported from Blender are usually imported into a piece of software
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Blender can be used to create meshes for 3D printing.
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Meshes exported from Blender are usually imported into a piece of software that
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takes the mesh and "slices" it into paths that the 3D printer can execute.
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An example of such `Slicer <https://en.wikipedia.org/wiki/Slicer_(3D_printing)>`__
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software is `Cura <https://github.com/Ultimaker/Cura>`__.
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@ -71,7 +71,7 @@ of meshes, it is always worth trying to provide as clean a mesh as possible.
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Solid
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Checks for Non-Manifold edges and Bad Contiguous edges.
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Edges should connect to exactly 2 faces. In it connects to only one,
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Edges should connect to exactly 2 faces. If it connects to only one,
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it means there's a hole in the mesh. More is also not allowed. These edges are considered Non-manifold.
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If one of the faces' normals is pointing in a different direction than its neighbors,
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its edges are marked as "Bad Contiguous".
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@ -106,7 +106,7 @@ Distorted
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In this example, a quad has been folded into a saddle-like shape.
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This triggers the `Distorted` check. It would be best to triangulate by hand here.
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.. figure:: /images/3dprint_intersect.jpg
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.. figure:: /images/3dprint_distorted.jpg
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This quad can triangulate in unexpected ways.
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@ -143,8 +143,38 @@ Make Manifold
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such as by fixing `bad normals`, filling holes, and removing empty edges and faces.
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Transform
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=========
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Edit
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====
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Hollow
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------
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This tool generates an offset surface from the target object using `OpenVDB <https://www.openvdb.org/>`__.
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It is useful for hollowing out a model for 3D printing, for instance, to save material and/or speedup print.
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It is also possible to create a thin-walled mold for the object, when using an outside offset surface.
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The target object must be a closed surface to allow for an inside offset surface, but not necessarily manifold.
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On the other hand, outside offset surfaces can be created even for open objects.
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Offset Direction
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Where the offset surface is created relative to the object. An *Inside* surface is useful to hollow out the the
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target, while an *Outside* surface can be used to create a thin-walled mold.
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Offset
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Surface offset in relation to the original mesh.
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Voxel size
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Lower values capture finer details but increase processing time and memory usage. Too large a value may lead to
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the offset surface intersecting the original object.
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Hollow Duplicate
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When unchecked, only the offset surface is generated. When checked, the tool generates a hollowed out copy
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of the target.
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.. figure:: /images/3dprint_hollow_in_out.jpg
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An inside (left) and an outside (right) hollowed out object, both cut in half to show the interior.
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Scale To
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--------
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@ -155,6 +185,14 @@ Volume
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Bounds
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Scales the model so that the biggest axis of the objects `bounds` (or `dimensions`) match the given value.
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Align XY
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--------
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Rotates the object so that the selected faces are parallel, in average, to the XY plane.
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Face Areas
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Take into account the sizes of the selected faces, so that larger ones contribute proportionally more to
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the orientation than the smaller ones.
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Export
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======
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BIN
manual/images/3dprint_distorted.jpg
(Stored with Git LFS)
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manual/images/3dprint_distorted.jpg
(Stored with Git LFS)
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manual/images/3dprint_hollow_in_out.jpg
(Stored with Git LFS)
Normal file
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manual/images/3dprint_hollow_in_out.jpg
(Stored with Git LFS)
Normal file
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