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Beam pivot post, 60 mm

What holds the pivot of a rocker beam on a Stirling engine? · Hardware · basis: Ø3 pin hole (fit: press); M3 clearance Ø3.4 (ISO 273)

Long Earth Society build part. Frame for the LES 2 in gamma on 2020. The engines

Exact dimensions. Every file is drawn at true size with no printing tolerance. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your printer's or process's clearance before making the part. Mating features

sizes
5 in table

Notes

  • 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.

Sizes

parametervalue
height60
upright16 × 10
foot30 × 16 × 4
pin holeØ3 at 54
foot holes2 × Ø3.4 at 22

Mating features

Drawn at the exact size. Open press, slide, run and socket features by your process's clearance; leave designed gaps and clamp fits as drawn.

featureexactmates withfitfiles
pivot-post pin holeØ3Ø3 pivot pinpresspivot-post-*
pivot-post foot holesØ3.4M3 screw clearancedesignedpivot-post-*

Where the files are

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

WikipediaBeam enginewebCC BY-SA 4.0 (text)
WikipediaStirling enginewebCC BY-SA 4.0 (text)
Long Earth SocietyEngine buildsweb, videoLES site

Free files

★ Free files 1 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

pivot-post-60beam pivot post 60 mm, Ø3 pin hole (exact), 2 × M3 clearance (Ø3.4) footSTEP · STL

Plain text: sheet.txt · JSON: /api/geometry?object=beam-pivot-post

Beam pivot post, 60 mm, isometric render of a generated part
Render of pivot-post-60 from the free STEP; not to scale.

How it fits

Goes in or on

Base plate for 1.5, 2 and 3 in tri-clamp Stirling…2 × M3 to the base

Connects to

Rocker beam 60 / 80 / 100 mm on a 623 pivotbeam's 623 on the Ø3 pin

Also needed

Dowel pins, 2–6 mmØ3 pivot pin

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Questions

How high is the beam pivot?

54 mm above the foot's underside.

What pin goes in the pivot post?

A Ø3 pin pressed in the hole; the rocker beam's 623 turns on it.