Beam pivot post, 60 mm — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/beam-pivot-post/  (CC BY 4.0)
Basis: Ø3 pin hole (fit: press); M3 clearance Ø3.4 (ISO 273)
Catalog version: 2026-10-20

Sizes: see table below
- A 16 × 10 upright 60 tall on a 30 × 16 × 4 foot.
- A Ø3 hole through the 10 mm upright, 54 mm up (fit: press), takes the pivot pin that the rocker beam's 623 turns on.
- Two Ø3.4 holes 22 mm apart in the foot take M3 screws to the base.

parameter  value
height  60
upright  16 × 10
foot  30 × 16 × 4
pin hole  Ø3 at 54
foot holes  2 × Ø3.4 at 22

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Wikipedia: Beam engine — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Beam_engine
- Wikipedia: Stirling engine — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Stirling_engine
- 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/beam-pivot-post/index.json
API: https://xemstudio.com/api/geometry?object=beam-pivot-post