Start with what needs to fit.
Compare published capabilities. A larger envelope is useful only when your intended projects need it.
Top-down nominal build areas at a shared scale. These are not machine footprints or operating clearances.
Specification ceilings are not measured output, sustained speed or quality benchmarks. We have not tested these machines.
Will your part fit?
Enter the bounding-box dimensions in the intended print orientation.
A useful first check.
Confirm the actual model in a slicer before buying. This tool does not rotate, split or analyse a 3D model. A positive box check is not a guarantee that supports, adhesion features and machine exclusions will fit.
Read the size decision guide ↗Published printer specifications
A readable reference for all four candidates. Manufacturer specification ceilings are not measured performance results. Open each analysis for its evidence and limitations.
| Model and analysis | Build envelope | Architecture | Maximum nozzle | Maximum bed |
|---|---|---|---|---|
| Bambu Lab A1 mini | 180 × 180 × 180 mm | Open frame | 300 °C | 80 °C |
| Bambu Lab A1 | 256 × 256 × 256 mm | Open frame | 300 °C | 100 °C |
| Bambu Lab P2S | 256 × 256 × 256 mm | Enclosed | 300 °C | 110 °C |
| ELEGOO Centauri Carbon 2 | 256 × 256 × 256 mm | Enclosed | 350 °C | 110 °C |