by Bill_3D·Workflow
Images © Bill_3D. Used for product review; image policy.
B.Slicer stands out in the superhive library by covering the full slice-to-SVG path in one addon — slicing, manifold checking, flattening, dowels, and export. The v1.4.0 update replaced the legacy Boolean slicing with a Bisect engine.
B.Slicer brings a slicing workflow to Blender: cut an object into sections, flatten the results, add registration dowels, and export as SVG. You select your object, set spacing and thickness, choose an axis and slice type, then click Slice. The Bisect engine handles the cutting and runs faster and more reliably on dense meshes, with an optional legacy Boolean slicer available under Advanced settings.
Three slicing modes control placement: Extremity starts from the edge of the object, Middle → Slice cuts symmetrically from center with a slice at the center, and Middle → Spacing does the same with a gap at the center. Check Manifold analyzes mesh health before slicing and highlights problematic geometry in the viewport, with per-island analysis and a visual report popup.
Flatten lays slices flat for laser cutting, CNC, or packed layouts, and Packed Flatten produces a tighter arrangement. An interactive tool places registration dowels between slices in 2D and 3D views. B.Slicer also organizes objects automatically in the outliner into Original, Sliced, and Flattened collections, and SVG export runs from a single click with organized layers and no camera setup.
B.Slicer is best for preparing 3D objects for laser cutting, CNC, or packed layouts by slicing them into sections and exporting as SVG.
B.Slicer is completely free to download and use.
B.Slicer's v1.4.0 update requires you to uninstall the current version before installing the new one, then restart Blender. The same step is noted for earlier patch releases as well. The v1.4.0 update also replaced the older Boolean-modifier slicing with a Bisect engine, which works best with manifold objects. After restarting, you can run Check Manifold to verify your mesh before slicing, since it highlights problematic geometry directly in the viewport with per-island analysis.
B.Slicer exports your sliced object to SVG with a single click — you select an output path, name the file, and export, with no camera or extra settings needed. The export includes organized layers. When naming your file, give it a unique name to avoid overwriting existing files. Before exporting you would typically slice the object and flatten the results, using Packed Flatten if you want a more compact, space-efficient layout ready for laser cutting or CNC.
B.Slicer's Bisect engine replaced the legacy Boolean-modifier slicing in v1.4.0 and runs faster and more reliably on dense meshes. It works best with manifold objects, so running Check Manifold first is recommended to catch problematic geometry, which is highlighted directly in the viewport with per-island analysis. If you prefer the older method, a legacy Boolean slicer remains available under Advanced → Use Legacy Boolean Slicer.
B.Slicer is listed as free in this catalog, and you can check the developer's page for current licensing details. The addon covers a full slicing workflow in Blender, including the Bisect slicing engine, three placement modes, Check Manifold mesh analysis, Flatten and Packed Flatten layouts, an interactive dowel tool, and one-click SVG export. A demo video is also available if you want to see more before installing.
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