Update 3D Print Toolbox documentation #104761

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Aaron Carlisle merged 2 commits from usfreitas/blender-manual:3d-print-toolbox-update into main 2024-04-12 04:14:32 +02:00
3 changed files with 50 additions and 6 deletions

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

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