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Cyclograph rule 150 × 15 × 4 with pivot and brace holes

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

Also called: cyclograph rule, arc drawing rule, regla del ciclógrafo, Zyklographenlineal

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

length
150.0 mm
width
15.0 mm
height
4.0 mm

Notes

  • 150 × 15 × 4 straight rule with a Ø3 pivot hole at (5.77, 10) from its working corner and a Ø3 brace hole at (100, 7.5): two of them pinned at the apex and braced make a rigid 120° angle whose edges run on two pins.
  • Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

Cyclograph rule 150 × 15 × 4 with pivot and brace holes size chart

dimensionvalue
rule150 × 15 × 4 mm
pivot holeØ3 at (5.77, 10)
brace holeØ3 at (100, 7.5)

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. 403: figure, his text and an animationwebPublisher's page; dimensions are facts
Xem StudiodrawingwebPublisher's page; dimensions are facts

Free files

★ Free files 1 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json

cyclograph-rule-150x15x4rule, working edge y = 0, corner at the origin, z 0..4STEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=cyclograph-rule-150x15x4

Cyclograph rule 150 × 15 × 4 with pivot and brace holes, isometric render of a generated part
Render of cyclograph-rule-150x15x4 from the free STEP; not to scale.

Fits with

Cyclograph: fixed-angle rules sliding on two pins draw a circular arc, isometric render of a generated part
Cyclograph: fixed-angle rules sliding on two pins draw a circular arc5 sizes★ 1 file

Questions

What is a cyclograph rule?

150 × 15 × 4 straight rule with a Ø3 pivot hole at (5.77, 10) from its working corner and a Ø3 brace hole at (100, 7.5): two of them pinned at the apex and braced make a rigid 120° angle whose edges run on two pins.