JimmyB
Active Member
Plenty of you use 3D printing, so for anyone using Blender for your creations, this addon that hollows out a mesh might come in handy. The mesh must be watertight. The addon also offsets a wall outwards for creating a casting mould.
Github:
github.com
Blender Artists discussion:
blenderartists.org
(To check if your mesh is watertight, activate the 3D Print Toolbox addon that's bundled with Blender.)
Github:
GitHub - usfreitas/voxel_hollow: A Blender add-on for hollowing out meshes
A Blender add-on for hollowing out meshes . Contribute to usfreitas/voxel_hollow development by creating an account on GitHub.
Blender Artists discussion:

Hollow out meshes for 3D printing
Hi! I would like to share a simple add-on I’ve made to hollow out meshes for 3D printing. I’ve posted about it in the devtalk blender forum. @Okidoki suggested I should also post it here, so there The add-on is available here (github). It is a single .py file with less than 200 lines. It...
(To check if your mesh is watertight, activate the 3D Print Toolbox addon that's bundled with Blender.)
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