Yes. The basic construction principle is independent of the material. However, you should account for the actual material thickness and the kerf/tolerance of your cutting process.

No. Material thickness can be defined in the add-on, but machine-specific kerf and fit tolerances should be adjusted according to your material and cutting process.

Yes. The workflow intentionally keeps the intermediate geometry accessible. You can move slicing planes, inspect slices, and make manual adjustments when an unusual model requires more control.

The default Blender Cube is 2 meters wide, while wk_sliceformPopUp is designed around objects of approximately 30 cm as a typical working size. With very large objects, the default SliceMaker → Grid Size creates an unnecessarily dense slicing grid, which can require a large amount of memory and may cause Blender to crash. For objects around the size of Blender's default Cube, increase SliceMaker → Grid Size to at least 90 mm before creating the slicing planes. This significantly reduces the mesh density and should allow the slicing process to run normally. In general: the larger your model, the larger the Grid Size should be.

Yes. The slot width can be adapted to the thickness of your material. This is useful for paper, cardboard, plywood, acrylic, metal, and other sheet materials.

Many models work well, but the quality of the result depends on the geometry. Closed and reasonably clean meshes usually produce the best results. Very thin parts, complex intersections, holes, or extremely detailed geometry may require some preparation before slicing.