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Tri-clamp twin walking-beam gamma generator, 2 in, chargeable

Two walking-beam tee units side by side on one crank, a quarter turn apart: each with its own closed hot spool over its own burner, its own tee, power cylinder, bounce spool and beam; one crankshaft, one Ø200 flywheel, one belted generator, one base.

Two walking-beam units on one crank, 90° apart · each: displacer Ø40 × 30, piston Ø48 × 36 · model shaft power: air 1 atm 4–9 W at 600 rpm; charged 5 bar gauge: air 12–59 W, helium 28–122 W at 1200 rpm · gas torque at 90°: 0.11–0.47 N·m (one unit -0.32–0.63) · 2208 generator: 1.0–7.1 W at 24–28 V at 1 atm

Exact dimensions. Every part is drawn at true size with no printing tolerance; each part's page lists its mating features and the fit each joint needs, so open those by your process's clearance before making the parts.

Long Earth Society build part. Complete parts list. The engines

58 parts, every one a file here · all STL URLs · Markdown · tick lines as you go (saved in this browser)

Assembled engine

A twin walking-beam gamma Stirling generator in 2 in tri-clamp: two standard-tee units side by side, each with a closed hot spool over its own torch, a bored power spool under a bounce spool and a T-beam on a post, both on one crankshaft a quarter turn apart with one Ø200 flywheel and a belt-driven gimbal-motor generator on one base; about 730 × 277 × 653 mm.

Assembly STEP (9.6 MB) · STL (18.2 MB) · 207 parts

Build order

1. Frame; two torch stands, two shrouds, four cradles.
2. Build each unit as the walking-beam gamma (unit 2 mirrored: its stub pins and links toward −Y).
3. Shaft through both uprights' 608s with the flywheel and the crank pulley between them; press the two webs on with their pins a quarter turn apart; con-rods and links onto the pins.
4. Generator, belt.

Agents: each row's object has /api/geometry?object=slug and the MCP tool get_free_files; the STL list above is every part.

JSON: /api/geometry?object=list-tri-clamp-twin-walking-beam-gamma