Crosshead Ø8 × 24 for a Ø3 piston rod — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/crosshead-8mm/  (CC BY 4.0)
Basis: Ø8 slider in the Ø8 guide (fit: run); clevis slot at the 5 mm con-rod thickness
Catalog version: 2026-10-20

Sizes: see table below
- A Ø8 × 24 slider on the Ø3 piston rod (Ø3 bore, fit: slide) that runs in the Ø8 crosshead guide (fit: run).
- A 5 mm slot, 13 deep, takes the 5 mm con-rod end (fit: run); a Ø3 hole through both cheeks 5 mm from the top takes the wrist pin (fit: press).
- The con-rod's sideways push lands on the crosshead and guide, so the piston moves only along its axis.

parameter  value
slider  Ø8 × 24
rod bore  Ø3
clevis slot  5 × 10 deep
wrist-pin hole  Ø3, 5 from top

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Wikipedia: Crosshead — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Crosshead
- Wikipedia: Piston — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Piston
- James R. Senft: Miniature Stirling engine piston fits (LTD book) — book — reference [verify license at link] — https://www.stirlingengine.com/
- Long Earth Society: Engine builds — web, video — LES site — https://longearthsociety.com/engineering/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/crosshead-8mm/index.json
API: https://xemstudio.com/api/geometry?object=crosshead-8mm