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Ross yoke rocking link, 40 mm
How long is the rocking link on a Ross yoke? · Hardware · basis: Solved Ross linkage: rocking link 40 from the frame pivot at (−40, 20) to the yoke's top-middle pin
Long Earth Society build part. The parallel-cylinder alpha, solved. 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
- The link that steadies the Ross yoke: 40 mm between Ø3 ends (fit: run), 48 × 8 × 5.
- One end turns on the Ø3 × 20 pin in the frame post, the other on the pin in the yoke's top-middle; it runs in the front plane, outside the con-rods.
Sizes
| parameter | value |
|---|---|
| centres | 40 |
| outline | 48 × 8 × 5 |
| holes | 2 × Ø3 (run) |
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 |
|---|---|---|---|---|
| link and con-rod ends | Ø3 | Ø3 pins (turn on them) | run | rocking-link-* |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Wikipedia | Ross yoke | web | CC BY-SA 4.0 (text) |
| 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
| rocking-link-40 | rocking link 40 mm, Ø3 ends (pins turn in them): frame post to the yoke's top-middle pin, in the front plane | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=ross-rocking-link
How it fits
Connects to
Ross yoke a = h = 20 for two parallel syringestop-middle Ø3 pin
Ross yoke alpha frame for two 10 mL syringesØ3 pin in the postAlso needed
Crankshafts Ø3, Ø5 and Ø8 with full-length D-flatØ3 × 20 pins, spacersIn these build lists
Ross yoke alpha, two parallel 10 mL syringesTwo 10 mL syringe barrels side by side on a Ross yoke: a = h gives 90° between t…You might also need
Questions
What does the rocking link on a Ross yoke do?
It holds the yoke's top-middle on an arc about the frame post, so the yoke rocks instead of swinging freely on the crank pin.
Where does the rocking link pivot?
On a Ø3 pin in the frame post at (−40, 20) from the crank axis.