Corner bridle joint (open mortise and tenon) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/corner-bridle-joint/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Xem Studio design — geometry computed in the generator from traditional proportions
Catalog version: 2026-10-20

Overall (mm): length 60.0, width 60.0, height 20.0
- 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 stock is split in thirds: the tenon is the middle third, the slot leaves two cheeks of one third each.
- Prints well: both parts flat, slot and tenon in the plane of the bed.

dimension  value
stock  20 × 20 mm square
parts  slotted member, tenon member
tenon / slot  6.67 mm (one third of 20)
length  20 mm (one stock width)
assembles  the tenon slides into the slot from the side
holds  racking, with large glue-free bearing faces; pin it against sliding out

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Xem Studio: Joinery design (geometry computed in the generator from traditional proportions) — web — Xem Studio design — https://xemstudio.com/

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 3 parts): https://xemstudio.com/files/hardware/corner-bridle-joint/index.json
API: https://xemstudio.com/api/geometry?object=corner-bridle-joint