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Jigsaw puzzle joint (for splitting large prints)

How do you join two 3D printed plates with a puzzle joint? · Hardware · basis: Xem Studio design — geometry computed in the generator from traditional proportions

Also called: puzzle joint, jigsaw joint, 3d print puzzle joint, split large 3d print, puzzle piece connector, dovetail puzzle joint, unión tipo puzzle, Puzzleverbindung, Puzzle Verbindung 3D Druck

Exact dimensions. True size, with no printing tolerance added.

length
120.0 mm
width
60.0 mm
height
6.0 mm

Notes

  • Woodworking joint drawn for 3D printing: the parts lock together by shape, so a print can be joined without glue or screws. Drawn at true size with the parts line to line (zero gap) in their assembled position — add your printer's fit allowance to the mating faces (your AI or slicer can do this).
  • The jigsaw-puzzle tab used to split a part that is too big for the bed: print both halves flat and press them together.

Jigsaw puzzle joint size chart

dimensionvalue
stock6 mm plates, 60 mm wide
partspart a, part b
tabstwo, Ø12 mm heads on 6 mm necks
assemblespressed together from above
holdspulling apart in the plane of the plates

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Xem StudioJoinery design (geometry computed in the generator from traditional proportions)webXem Studio design

Free files

★ Free files 3 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json

jigsaw-puzzle-joint-part-aPlate with two round puzzle tabsSTEP · STL
jigsaw-puzzle-joint-part-bPlate with the matching socketsSTEP · STL
jigsaw-puzzle-joint-assembledAll parts in their assembled position (each part its own solid)STEP · STL
Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.
Set it up →

Plain text: sheet.txt · JSON: /api/geometry?object=jigsaw-puzzle-joint

Jigsaw puzzle joint (for splitting large prints), isometric render of a generated part
Render of jigsaw-puzzle-joint-assembled from the free STEP; not to scale.

Fits with

Sliding dovetail joint (dovetail housing), isometric render of a generated part
Sliding dovetail joint (dovetail housing)95.0×80.0×100.0 mm★ 3 files
Butterfly key (bow-tie, dutchman), isometric render of a generated part
Butterfly key (bow-tie, dutchman)80.0×80.0×20.0 mm★ 4 files
Snap-fit cantilever joint (hook and catch), isometric render of a generated part
Snap-fit cantilever joint (hook and catch)25.0×16.0×29.0 mm★ 3 files

Questions

How do I split a print too big for my bed?

Cut it with puzzle tabs like these (or a sliding dovetail) and press the halves together.