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Frame for the tri-clamp walking-beam gamma
What frame holds a tri-clamp walking-beam Stirling? · Hardware · basis: Design values
Long Earth Society build part. The frame of my walking-beam engine. 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
- 3 in table
Notes
- One base: cradles under the hot spool and the tee, the beam's post, the crank's two uprights and the generator bracket.
Sizes
| feature | value |
|---|---|
| base | 730 × 175 × 8 |
| run axis | 138 above the bench |
| pivot | 626.4 above the bench |
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.
| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| crank uprights | Ø22 × 7 pockets | 608 bearing OD | press | all |
| pivot cheeks | Ø5 | Ø5 dowel pivot pin | press | all |
| cradles | Ø50.8 seats | hot-spool and tee OD | designed | all |
| tapped holes | M4 Ø3.3, M3 bracket Ø3.4 + 90° countersink | torch stand, shroud, generator | designed | all |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Long Earth Society | Engine builds | web, video | LES 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
| walking-beam-gamma-frame-2in | walking-beam gamma frame: base 730 × 175 × 8, two cradles, beam post with cheeks (Ø5 pivot holes), two crank uprights with 608 pockets, generator bracket, torch-stand and shroud holes (M4 tapped) | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=tri-clamp-walking-beam-gamma-frame
How it fits
In these build lists
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Questions
How tall is it?
The beam pivot is 626 mm above the bench: the 6 in bounce spool sits under the piston-rod gland.