Xem Studiomeasured geometryLibrary › Stirling engines › Drives & mechanisms ·
Threaded rod, metric: M4 × 194.2
How long a rod carries the flexures of the 2 in free-piston mover? · Hardware · basis: ISO metric M4; thread drawn as the plain major diameter, this site's convention
Long Earth Society build part. The flexure rods of my generator pistons. 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
- 1 in table
Notes
- M4 threaded rod cut to 195.9: from the mover crown's tapped hole down through both flexure stacks to 1 mm below the last hub nut.
Sizes
| thread | length_mm |
|---|---|
| M4 | 195.9 |
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 |
|---|---|---|---|---|
| thread | M4 (drawn Ø4) | mover crown tap drill, hub nuts | designed | all |
| rod through the hubs | Ø4 | flexure hub Ø4, hub washer Ø4 | slide | all |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Xem Studio | tools/gen_ta_power.py: the network model and every dimension on this page | code | CC BY 4.0 |
| 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
Plain text: sheet.txt · JSON: /api/geometry?object=threaded-rods-metric
How it fits
In these build lists
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Questions
Why threaded?
The leaf hubs are clamped between nuts anywhere along it; no shoulders to machine.