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Crosshead guide, Ø8 bore × 30
What guide does an 8 mm crosshead run in? · Hardware · basis: Bore at the Ø8 crosshead (fit: run); M3 clearance Ø3.4 (ISO 273)
Long Earth Society build part. The power piston and liner on the LES gamma. 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 tube Ø16 outside with a Ø8 bore, 30 long, that the Ø8 crosshead runs in (fit: run).
- A 32 × 10 × 4 flange at its base has 2 × Ø3.4 holes 22 mm apart for M3 screws.
Sizes
| parameter | value |
|---|---|
| bore | 8 |
| outside | 16 |
| length | 30 |
| flange | 32 × 10 × 4 |
| holes | 2 × 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.
| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| guide bore | Ø8 | crosshead OD | run | crosshead-guide-* |
| guide flange holes | Ø3.4 | M3 screw clearance | designed | crosshead-guide-* |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Wikipedia | Crosshead | web | CC BY-SA 4.0 (text) |
| Wikipedia | Piston | web | CC BY-SA 4.0 (text) |
| James R. Senft | Miniature Stirling engine piston fits (LTD book) | book | reference verify |
| 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
| crosshead-guide-8mm | crosshead guide: Ø8 bore (the crosshead OD, exact) × 30, flange with 2 × M3 clearance (Ø3.4) | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=crosshead-guide-8mm
How it fits
Goes in or on
Base plate for 1.5, 2 and 3 in tri-clamp Stirling…flanged to the frame in line with the linerConnects to
Crosshead Ø8 × 24 for a Ø3 piston rodcrosshead runs in the boreAlso needed
Socket head cap screws, M2–M82 × M3You might also need
Questions
What bore is the crosshead guide?
Ø8, the crosshead's outside diameter; fit: run.
How is the crosshead guide mounted?
Two M3 screws through the flange, 22 mm apart.