Why odd and even dimensions build differently
An odd width has a single center block, while an even width has a center gap between blocks. That changes symmetry, entrances, walls, and how multiple layers line up. Choose the dimensions based on the structure you want, not only on the outside diameter.
The highlighted build guide is most useful when you complete one row or layer at a time. Marking progress reduces mirrored mistakes on large circles, domes, and spheres.
Plan large shapes before committing materials
Prototype a small section with temporary blocks to confirm thickness and curvature. Large voxel shapes can look very different from ground level than they do in a flat grid.
For hollow structures, decide wall thickness, floor height, and access points before building the full outline. Export or keep the pattern visible on a second screen so each completed line can be checked consistently.