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Sun-and-planet rod, 100 mm, with Ø10 × 13 planet boss

What is the planet rod? · Modern device · basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance

Also called: sun and planet rod, planet connecting rod, biela de sol y planeta, Pleuel für Sonnen-und-Planetengetriebe

Exact dimensions. True size, with no printing tolerance added.

length
118.0 mm
width
18.0 mm
height
18.0 mm

Notes

  • 18 × 5 mm rod, 100 mm between the planet boss and a Ø3 pin hole: the planet gear is fixed on the Ø10 × 13 boss (it does not turn on the rod), the arm turns on the boss above the gear. Rocking the far end drives the sun round.
  • Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

Sun-and-planet rod, 100 mm, with Ø10 × 13 planet boss size chart

dimensionvalue
length (centres)100 mm
bossØ10 × 13 mm
end holeØ3

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Henry T. Brown (1868, public domain)Five Hundred and Seven Mechanical Movements — scan on archive.orgwebPublisher's page; dimensions are facts
507movements.comBrown's movement No. 39: figure, his text and an animationwebPublisher's page; dimensions are facts
Xem StudiodrawingwebPublisher's page; dimensions are facts

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

sun-and-planet-rod-100rod: bar z −5..0, boss z 0..13STEP · STL
Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.
Set it up →

Plain text: sheet.txt · JSON: /api/geometry?object=sun-and-planet-rod-100

Sun-and-planet rod, 100 mm, with Ø10 × 13 planet boss, isometric render of a generated part
Render of sun-and-planet-rod-100 from the free STEP; not to scale.

Fits with

Sun-and-planet gear (Watt's crank substitute), 30 : 30, isometric render of a generated part
Sun-and-planet gear (Watt's crank substitute), 30 : 304 sizes★ 1 file

Questions

What is the planet rod?

18 × 5 mm rod, 100 mm between the planet boss and a Ø3 pin hole: the planet gear is fixed on the Ø10 × 13 boss (it does not turn on the rod), the arm turns on the boss above the gear. Rocking the far end drives the sun round.