
BlenderAe2
by Salt Media
BlenderAe2 by Salt Media transfers 3D data and objects between Blender and After Effects in both directions, covering vertices, 3D layer transforms, camera data and layer synchronization.
by Paulo·Workflow
Images © Paulo. Used for product review; image policy.
MeshSmith earns its place in the superhive library by keeping the full print-prep workflow — repair, analysis, cutting, orientation, and export — inside Blender rather than across separate tools.
MeshSmith is a Blender add-on that keeps 3D printing preparation inside Blender. A one-click setup configures Blender for real-world printing, so you work in the same units as your printer from the start.
Mesh repair detects and fixes common issues, including non-manifold geometry, holes, loose vertices, flipped normals, N-gons, and overlapping faces. Printability analysis reports watertight status, manifold checks, loose geometry, wall thickness problems, unapplied transforms, and print bed compatibility, while wall thickness visualization highlights areas that are too thin.
Print cutting splits oversized models into printable sections, and split-and-combine tools support kitbashing. Optimization covers decimation and voxel remeshing, auto orientation finds orientations that improve printability, and built-in human reference scales keep characters and props consistently sized. Batch STL export applies modifiers automatically and exports one STL per object with a single click. MeshSmith is a GPL add-on compatible with Blender 4.2 through 5.2.
Meshsmith is best for miniature designers, tabletop creators, cosplay prop makers, figurine sculptors, terrain artists, product designers, and anyone creating printable models in Blender.
Meshsmith is completely free to download and use.
MeshSmith lists compatibility with Blender versions 4.2 through 5.2, so 4.2 is supported. It is distributed as a Blender add-on and is marked Blender Extension compatible. The tools run inside Blender and cover setup for real-world printing units, mesh repair, printability analysis, wall thickness visualization, print cutting, optimization, auto orientation, and batch STL export. If you use a Blender version outside the 4.2 to 5.2 range, check the developer's page before installing to confirm it will run for you.
MeshSmith is released under the GPL license and is published as a Blender add-on, with its developer listed as a Blender Development Fund contributor. Being GPL, it follows the same open-source terms as many Blender extensions. For the exact conditions covering use, redistribution, and anything that applies to your specific project, refer to the license text and the developer's page rather than relying on a short summary here, since those terms are the authoritative source.
MeshSmith is listed as free in this catalog. Pricing and licensing can change over time, so for the current cost, any purchase options, and the full licensing terms, check the developer's page directly. Functionally, MeshSmith brings 3D print preparation into Blender, including mesh repair, printability analysis, wall thickness visualization, print cutting, optimization, auto orientation, human reference scales, and batch STL export, letting you prepare models without moving between separate applications.
MeshSmith includes batch STL export, which applies modifiers automatically and exports one STL file per object with a single click. Alongside export, it offers printability analysis that checks watertight status, manifold geometry, loose geometry, wall thickness problems, unapplied transforms, and print bed compatibility, so you can verify a model before sending it out. This keeps the check-and-export step inside Blender rather than requiring a separate tool for STL output, which is the point of the add-on.

by Salt Media
BlenderAe2 by Salt Media transfers 3D data and objects between Blender and After Effects in both directions, covering vertices, 3D layer transforms, camera data and layer synchronization.

by MACHIN3
Machin3Tools is a continuously evolving collection of tools and pie menus for Blender, gathered in a single customizable package. It ships in two base variants, Prime and DeusEx, with the DeusEx variant adding more advanced tools.

by MikhailRachinskiy
3D Print Toolbox is a Blender add-on with utilities for 3D printing. It analyzes mesh volume and surface area, checks and fixes geometry, hollows shapes, aligns models to the print bed, and exports to STL, PLY, and OBJ.

by glukoz
UVPackmaster 4 is a UV packing engine for Blender that packs UV maps on the CPU and GPU, using the Cuda and Vulkan APIs, and can run on the CPU and all system GPUs at once.

by MMD
MMD Tools is a Blender add-on for editing MikuMikuDance (MMD) models. It handles importing and exporting model, motion and pose data, along with chopping and joining parts, plus rigid body, material and motion editing.

by HaughtyGrayAlien
SimpleBake brings PBR and traditional texture baking to Blender from a single panel. Select objects, choose maps, and bake — no special node groups or new workflow, working with whatever materials you've already built.