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Drawbore mortise and tenon joint

Name: Drawbore mortise and tenon joint dimension sheet
Creator: Xem Studio
License: https://creativecommons.org/licenses/by/4.0/

How far is a drawbore hole offset? · Hardware · basis: Xem Studio design — geometry computed in the generator from traditional proportions

Also called: drawbore, drawbore joint, draw bore mortise and tenon, drawbore offset, espiga con clavija desplazada, Zapfen mit versetztem Holznagel

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

length: 80.0 mm
width: 80.0 mm
height: 20.0 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 tenon's hole is offset toward the shoulder, so driving the peg pulls the joint tight — no clamps or glue.
The peg overlaps the tenon by the 1 mm drawbore offset on purpose: that overlap is what pulls the joint tight.

Drawbore mortise and tenon joint size chart

dimension	value
stock	20 × 20 mm square
parts	stile, rail, peg
tenon	15 × 6.67 mm, 15 mm long
peg	Ø5 mm
offset	1 mm: the tenon's hole is nearer the shoulder
assembles	tenon in, peg driven through: it bends and pulls the shoulder tight
holds	pull-out, and keeps the shoulder closed

Where the files are

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

Xem Studio

Joinery design (geometry computed in the generator from traditional proportions)

web

Xem Studio design

Free files

★ Free files 4 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json

drawbore-mortise-and-tenon-joint-stile	Mortised member: peg hole through both cheeks	STEP · STL
drawbore-mortise-and-tenon-joint-rail	Tenon: peg hole offset 1 mm toward the shoulder	STEP · STL
drawbore-mortise-and-tenon-joint-peg	Ø5 mm peg, in the stile's hole	STEP · STL
drawbore-mortise-and-tenon-joint-assembled	All 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=drawbore-mortise-and-tenon-joint