Minecraft Circle, Sphere & Dome Generator
Generate block-by-block blueprints for circles, ellipses, spheres, domes, and material counts. Use pan, zoom, layer sliders, PNG/SVG/CSV export, and print-friendly layouts while you build.
Independent Minecraft-style block blueprint tool. Not affiliated with Mojang or Microsoft.
BlockLayer Blueprint Generator
X -15..15 · Z -15..15
- Odd size: the blueprint has one exact center block.
Export, print, and copy
These controls are intentionally kept separate from ad placements.
Row-by-row table
Continuous row segments are listed as start..end ranges so builders do not need to count every block by eye. Use Builder mode to highlight a row and copy only that row.
Page URL: https://blocklayer.ymirtool.com
| Z row | Blocks | Segments | Builder mode |
|---|---|---|---|
| -15 | 7 | -3..3 (7) | |
| -14 | 6 | -6..-4 (3); 4..6 (3) | |
| -13 | 4 | -8..-7 (2); 7..8 (2) | |
| -12 | 2 | -9..-9 (1); 9..9 (1) | |
| -11 | 2 | -10..-10 (1); 10..10 (1) | |
| -10 | 2 | -11..-11 (1); 11..11 (1) | |
| -9 | 2 | -12..-12 (1); 12..12 (1) | |
| -8 | 2 | -13..-13 (1); 13..13 (1) | |
| -7 | 2 | -13..-13 (1); 13..13 (1) | |
| -6 | 2 | -14..-14 (1); 14..14 (1) | |
| -5 | 2 | -14..-14 (1); 14..14 (1) | |
| -4 | 2 | -14..-14 (1); 14..14 (1) | |
| -3 | 2 | -15..-15 (1); 15..15 (1) | |
| -2 | 2 | -15..-15 (1); 15..15 (1) | |
| -1 | 2 | -15..-15 (1); 15..15 (1) | |
| 0 | 2 | -15..-15 (1); 15..15 (1) | |
| 1 | 2 | -15..-15 (1); 15..15 (1) | |
| 2 | 2 | -15..-15 (1); 15..15 (1) | |
| 3 | 2 | -15..-15 (1); 15..15 (1) | |
| 4 | 2 | -14..-14 (1); 14..14 (1) | |
| 5 | 2 | -14..-14 (1); 14..14 (1) | |
| 6 | 2 | -14..-14 (1); 14..14 (1) | |
| 7 | 2 | -13..-13 (1); 13..13 (1) | |
| 8 | 2 | -13..-13 (1); 13..13 (1) | |
| 9 | 2 | -12..-12 (1); 12..12 (1) | |
| 10 | 2 | -11..-11 (1); 11..11 (1) | |
| 11 | 2 | -10..-10 (1); 10..10 (1) | |
| 12 | 2 | -9..-9 (1); 9..9 (1) | |
| 13 | 4 | -8..-7 (2); 7..8 (2) | |
| 14 | 6 | -6..-4 (3); 4..6 (3) | |
| 15 | 7 | -3..3 (7) |
Builder mode notes
Use layer navigation for spheres and domes, row highlighting for the current layer, and copy the current row when you want a small step-by-step instruction instead of a full table.
Odd diameters have a single center block. Even diameters place the center between blocks, so the highlighted axes and bounds should be followed instead of guessing from a screenshot.
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FAQ
Is BlockLayer an official Minecraft tool?
No. BlockLayer is an independent Minecraft-style block blueprint tool and is not associated with Mojang or Microsoft.
Does the sphere generator reuse a circle generator?
No. Sphere and dome layers are generated from 3D voxel inclusion tests, then shown as layer-by-layer 2D blueprints.
Can I export Litematica, NBT, or structure files?
No. MVP exports PNG, SVG, CSV, print output, row lists, layer summaries, and share links only.
Why do even diameters look centered between blocks?
Even dimensions do not have one center block. The center falls between blocks, so the blueprint warns about even-center alignment.