Anycubic Kobra 3 build volume: 250 × 250 × 260 mm — what fits, and how to print what doesn't
Quick answer: the Anycubic Kobra 3 prints objects up to 250 × 250 × 260 mm (X × Y × Z, that is width × depth × height) — 16.2 litres, which ranks #80 of 152 printers in the dataset. The largest cube is 250 mm; a thin flat part can reach about 344 mm along the bed diagonal. Anything bigger is split into pieces with connectors — the splitter has a Anycubic Kobra 3 preset.
What the numbers mean for your model
Build volume is quoted as the box the nozzle can reach, X × Y × Z. A model fits whole when it fits that box in some orientation, which is more forgiving than it sounds: a long flat part can lie diagonally across the 250 × 250 mm bed (diagonal 354 mm, so about 344 mm usable once a margin is left for the brim), and a tall part can stand up to 260 mm if its footprint fits. The splitter checks every orientation before it decides a model needs cutting, and reports "already fits" when it does.
When it does not fit, the number of pieces depends on which axis overflows. If only the longest dimension is too big, this is what a Anycubic Kobra 3 needs, allowing a 2 mm margin per piece:
| Model's longest side | On the Anycubic Kobra 3 | Piece length |
|---|---|---|
| 250 mm | fits whole | — |
| 300 mm | 2 pieces | 150 mm each |
| 400 mm | 2 pieces | 200 mm each |
| 500 mm | 2 pieces | 250 mm each |
| 600 mm | 3 pieces | 200 mm each |
| 800 mm | 4 pieces | 200 mm each |
Pieces along the printer's longest axis (260 mm). A model that overflows two axes needs the product of the two counts — the splitter plans that automatically, and usually finds a layout with fewer pieces than the naive grid by rotating the model first.
Anycubic Kobra 3 notes
The Kobra 3 prints 250 × 250 × 260 mm, 16 litres — about the Bambu 256 mm class — with the ACE Pro multi-colour box as an option. The extra 30 mm over a 220 mm bed means a surprising number of models fit whole; what needs splitting are helmets, busts and anything over 260 mm tall. Painted multicolour 3MF projects split into pieces that keep their colours for the ACE.
Printers with a similar build volume
| Printer | X × Y × Z (mm) | Litres | Rank |
|---|---|---|---|
| Bambu Lab A1 | 256 × 256 × 256 | 16.8 | #73 |
| Bambu Lab P1P | 256 × 256 × 256 | 16.8 | #74 |
| Bambu Lab P1S | 256 × 256 × 256 | 16.8 | #75 |
| Bambu Lab X1 | 256 × 256 × 256 | 16.8 | #76 |
| Bambu Lab X1 Carbon | 256 × 256 × 256 | 16.8 | #77 |
| Bambu Lab X1E | 256 × 256 × 256 | 16.8 | #78 |
Other Anycubic printers in the dataset: Anycubic Chiron, Anycubic i3 Mega, Anycubic Kobra, Anycubic Kobra 2, Anycubic Kobra 2 Max, Anycubic Kobra 2 Plus, Anycubic Kobra 2 Pro, Anycubic Kobra 3 Max, Anycubic Kobra Go, Anycubic Kobra Max.
Split a model for the Anycubic Kobra 3
- Open splicestl with the Anycubic Kobra 3 preset selected and drop the STL, 3MF or OBJ on the page. Nothing is uploaded.
- The split runs by itself to 250 × 250 × 260 mm minus a margin, on all three axes at once. Drag a cut handle to move a seam; Shift-click the model to mark a spot a seam must avoid.
- Pick connectors — pegs by default; dovetails, finger joints, magnet pockets, dowel holes, screw joints or your own — and download the zip: one file per piece lying flat, the connectors, a README and an assembly sheet.
Frequently asked questions
What is the build volume of the Anycubic Kobra 3?
250 × 250 × 260 mm (width × depth × height), which is 16.2 litres. That is the manufacturer's stated printable volume as used by splicestl's Anycubic Kobra 3 preset; the physical bed may be a few millimetres larger.
What is the largest object you can print on the Anycubic Kobra 3?
A 250 mm cube fits outright. A flat part can be longer by lying on the bed diagonal: up to about 344 mm long if it is narrow and under 260 mm tall. A tall part can stand 260 mm high if its footprint is within 250 × 250 mm. Anything that exceeds these in any orientation has to be split.
How do I print something bigger than the Anycubic Kobra 3's build volume?
Split it into pieces that each fit, add connectors at the cuts, print the pieces and join them. The free browser splitter at splicestl.com has a Anycubic Kobra 3 preset: load the STL, 3MF or OBJ, choose the preset, and the model is cut on all three axes to fit 250 × 250 × 260 mm with pegs, dovetails or magnet pockets placed at every cut. Download gives one file per piece plus an assembly sheet.
Related
Source and changes. Dimensions are the manufacturer's published specification as recorded in the splicestl build-volume dataset (CC BY 4.0; the tool's preset table, read 13 October 2026). Derived figures (litres, diagonal, rank, piece counts) are computed from those three numbers by tools/build-printer-pages.py. Page published 31 October 2026. If the manufacturer has changed the specification, tell us and the dataset, the preset and this page change together.