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Guides: print big models in parts

Step-by-step guides for splitting a model that does not fit your printer, joining the parts and making the seams disappear.

Split an STL in Bambu Studio with the Cut tool

Cut a model in Bambu Studio step by step: the cut plane, plugs and dowels, laying parts flat, and when a dedicated splitter is faster for big prints.

Split an STL in PrusaSlicer with the Cut tool

Split a model in PrusaSlicer: the cut tool, plug, dowel and snap connectors, Cut to parts and Place on cut, and when a dedicated splitter is faster.

Split an STL in OrcaSlicer: cut, connect, print

Split a model in OrcaSlicer: the cut plane, plug and dowel connectors, multiple plates, calibrating for a good fit, and when a dedicated splitter is faster.

How to split a model for UltiMaker Cura

UltiMaker Cura has no plane cut tool like other slicers. Here are the workarounds that work, their limits, and how to split a model before importing it.

How to print an object bigger than your printer

Print an object bigger than your build plate: scale or split, where to cut, part orientation, pins and magnets, tolerances, material and hiding the seams.

Dowels, pegs or magnets: how to join 3D printed parts

Join split 3D prints with printed pins, wooden dowels, pegs, magnets, dovetails or glue: pros and cons, FDM clearances, magnet pocket sizes and polarity.

Splitting a cosplay helmet for a small 3D printer

Print a cosplay helmet on a small printer: measure your head, scale the model, cut along design lines, orient for clean surfaces, then glue, fill and paint.

Repairing a non-manifold STL: holes, normals and open shells

Holes, flipped normals, self-intersections: what non-manifold means, why slicers and splitters fail on broken meshes, and how to detect and repair an STL file.

Gluing 3D printed parts and hiding the seams

Glue 3D printed parts and hide the seams: surface prep, CA vs epoxy vs plastic welding, clamping, filler putty, sanding grits, filler primer and painting tips.

How to split an STL in 2026: the options compared

LuBan 3D, Split3r, 3D Splitter, PartFit 3D, slicers, AI, freelancers and SplitSTL: a factual comparison of the ways to split an oversized 3D model in 2026.