What is the Bambu Lab A1's build volume?
256 × 256 × 256 mm (about 10.1 × 10.1 × 10.1 inches).
Printer guides › Bambu Lab A1
How to print models bigger than the Bambu Lab A1
The Bambu Lab A1 has a build volume of 256 × 256 × 256 mm. That's a generous bed, but long props, wall art and furniture parts still go over it.
To print something larger, split the STL into pieces that fit and join them after printing. PrintSlice does the splitting in your browser: with default settings each piece is at most 244 × 244 × 244 mm, and you can add pin, key or dovetail connectors on the cut faces so the pieces line up and snap together.
Open PrintSlice with a 256 × 256 × 256 bed
Free to split and preview, and your first model is free to download. The bed size is filled in for you.
Bambu Lab A1 at a glance
Build volume256×256×256mm
Largest piece244×244×244mm
Example3pieces
Example: A 600 mm prop sword blade (600 × 80 × 20 mm) doesn't fit the A1. PrintSlice splits it 3 × 1 × 1 into 3 pieces of about 200 × 80 × 20 mm, each of which fits the bed.
How to split a model for the A1
- Open PrintSlice with the A1 bed size and drop in your STL file, or try the sample model.
- Press Split into bed-sized pieces. PrintSlice works out the smallest grid of equal pieces that fits, cutting along all three axes if it needs to.
- Open a piece's preview and click a cut face to add a key, pin or dovetail connector. Then download the pieces and slice them in Bambu Studio as normal.
Tips for splitting on the A1
Long parts only need cutting one way
Swords, staffs, rails and frames are the classic A1 overflow: one long side and two short ones. PrintSlice only cuts the long side in that case, so you get a short row of pieces with a connector at each seam.
Use dovetails where it takes load
On a prop that gets swung or carried, a dovetail joint resists pulling apart better than a straight key. Add glue as well for anything that takes real stress; the connectors keep the pieces lined up while it sets.
Mind the moving bed
Like the A1 mini, the A1 moves the plate under the print. Lay tall pieces on a flat side in Bambu Studio, and use a brim if one looks unsteady.
Upgraded from the A1 mini?
Pieces split for a 180 mm bed print fine on the A1, but splitting again for 256 mm usually means fewer pieces and fewer seams. A 260 × 220 × 280 mm helmet needs 8 pieces on the A1 mini but only 4 on the A1.
Questions
What's the largest single piece PrintSlice makes for the A1?
With default settings, 244 × 244 × 244 mm. PrintSlice keeps 5.6 mm clear on every side: a 2 mm safety margin you can change, plus 3.6 mm so connector tabs still fit on the bed.
Can't I just split the model in Bambu Studio?
Bambu Studio's cut tool is fine for one or two cuts you place by hand. PrintSlice is quicker when a model needs several: it works out every cut from your bed size, splits along all three axes in one go, and adds key, pin or dovetail connectors on the seams.
Will the printed pieces fit back together?
Yes. Each tab and socket pair is made from the same shape with a small built-in clearance (0.2 mm by default, adjustable per connector), so the pieces push together without sanding. You can choose a rectangular key, a round pin or a dovetail, which resists being pulled apart.
Is my model uploaded anywhere?
No. The splitting, connectors and 3D preview all run in your browser, so your STL file never leaves your computer.
Does PrintSlice cost anything?
Splitting and previewing is free, with no account needed, and your first model is free to download with a free account. To download more models, start a 7-day free trial (a card is needed, but you aren't charged until the 7 days are up and you can cancel before then). After that it's £3.99 a month.