Bayonet twist-lock joint — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/bayonet-twist-lock-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 40.0, width 40.0, height 30.0
- 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).
- Push and twist: pins on the plug run down the straight part of the L slots and lock in the short turn — lids, lens mounts, quick-release fittings, vacuum and dust ports.

dimension  value
stock  Ø40 socket, Ø32 plug
parts  socket, plug
pins  three, Ø4 mm, 120° apart
slot  12 mm straight entry, then a 30° turn
assembles  push in, turn 30° to lock
holds  pulling apart; turn back to release

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/bayonet-twist-lock-joint/index.json
API: https://xemstudio.com/api/geometry?object=bayonet-twist-lock-joint