Software to split a 3D model into printable pieces
If a model is bigger than your printer, something has to cut it into pieces. Here are the main options, what they cost, and which kind of job each one suits. Prices were checked in October 2026.
Quick comparison
| Tool | Price | Cuts placed | Connectors | Plates laid out | Assembly help | Runs on |
|---|---|---|---|---|---|---|
| Slicer cut tool (Bambu Studio, OrcaSlicer, PrusaSlicer) | Free | By hand, one at a time | Yes | You arrange them | None | Windows, Mac, Linux |
| Blender add-ons (e.g. Bed Fit Splitter) | Blender is free, add-ons about $19 | Automatic or by hand, depending on the add-on | Yes (dowels) | No | Varies (Bed Fit Splitter writes a text print plan) | Wherever Blender runs |
| Split3r | €60 Basic, €95 Full, one-time | Automatic, with manual control | Yes (tenons) | No | Numbered parts | Windows, Mac, Linux |
| LuBan 3D | $30/month, $150/year or $750 lifetime | Automatic | Yes | No | Numbered parts | Windows, Mac |
| Scale & Cut 3D | $20 one-time | Automatic | Yes (pegs) | Yes, in build order | Numbers on every face, plus a step-by-step build guide | Windows, Apple silicon Mac |
Your slicer's cut tool
Free, built into Bambu Studio, OrcaSlicer and PrusaSlicer. You place each cut by hand and can add connectors.
Catch: one cut at a time. Fine for a few cuts, slow for a model that needs dozens, and you track and plate every piece yourself.
Blender add-ons
Add-ons like Bed Fit Splitter ($19) split a model inside Blender and add dowel holes.
Catch: you need to know Blender, and you get loose STL files to arrange on plates yourself.
Split3r
Automatic splitting with tenon joints and numbered parts. €60 to €95, one-time. Windows, Mac and Linux.
Catch: about three to five times the price, and no plate layout, so you arrange every piece in your slicer.
LuBan 3D
Automatic splitting with joints and numbered parts. $30 a month, $150 a year or $750 lifetime, with a 30-day trial.
Catch: the price, no plate layout, and in my experience it's clunky and hard to learn.
Scale & Cut 3D
I made Scale & Cut 3D for my own Halloween props, after cutting big prints by hand for years. You give it a model and the finished size you want, and it does the rest in one pass:
- Scales the model in mm, inches or feet, and can stand it upright first.
- Cuts it into pieces that fit your printers, even a mix of bed sizes, and merges tiny slivers into their neighbours.
- Adds alignment pegs on every seam and engraves each face with the number of the piece that goes there.
- Can hollow the model to save filament.
- Lays everything out on plates in build order, as Bambu Studio, OrcaSlicer or PrusaSlicer projects. Split3r and LuBan 3D cut the model, but you still arrange the pieces on plates yourself.
- Writes an assembly guide: every piece in build order, which plate it's on, which direction it slides in, and what it glues to.
It's $20 one-time for Windows and Mac, on up to two computers. Since you read this far, here's 25% off.
Limits, honestly: cuts are straight and placed automatically, so you can't yet pick where each one goes, and a seam can land across a detailed area like a face. There's no Linux or Intel Mac version. It's also new, so there are fewer reviews than for the older tools.
Which one should you use?
- A few cuts: your slicer's free cut tool.
- You already live in Blender: a Blender add-on.
- Lots of pieces, and you want plates ready to print and a build guide, for a low price: Scale & Cut 3D.
- Lots of manual control, or Linux: Split3r.
- Professional use with a budget to match: LuBan 3D.
Want an app to do the cutting?
Scale & Cut 3D cuts your model into pieces that fit your printer, adds pegs and part numbers, and lays them out on plates for Bambu Studio or OrcaSlicer. Windows and Mac, $20.
Check it outQuestions
What is the cheapest way to split a large 3D model?
The free cut tool in Bambu Studio, OrcaSlicer or PrusaSlicer. It works well for a few cuts. For models that need many pieces, an automatic tool saves a lot of time; Scale & Cut 3D is $20 one-time.
Is there software that splits a model automatically?
Yes. LuBan 3D, Split3r and Scale & Cut 3D all cut a model into pieces that fit your build volume automatically and add connectors. Scale & Cut 3D also lays the pieces out on plates for Bambu Studio, OrcaSlicer or PrusaSlicer.
What's a cheaper alternative to LuBan 3D?
Split3r (€60 to €95 one-time) and Scale & Cut 3D ($20 one-time) both split models automatically for much less than a LuBan license.