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Right-triangle ruler 120 × 40 × 4 (half of a sliding parallel ruler)

What is a sliding-triangle parallel ruler? · Modern device · basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance

Also called: sliding parallel ruler, triangle ruler, regla de triángulos deslizantes, Schiebedreieck-Parallellineal

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

length
120.0 mm
width
40.0 mm
height
4.0 mm

Notes

  • Right triangle with 120 and 40 mm legs, 4 mm thick: two of them, laid hypotenuse to hypotenuse, form a 120 × 40 rectangle whose long edges stay parallel as one triangle slides along the other.
  • Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

Right-triangle ruler 120 × 40 × 4 size chart

dimensionvalue
legs120 × 40 mm
hypotenuse126.49 mm
thickness4 mm

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. 322: 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

parallel-ruler-triangle-120x40triangle, right angle at the originSTEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=parallel-ruler-triangle-120x40

Right-triangle ruler 120 × 40 × 4 (half of a sliding parallel ruler), isometric render of a generated part
Render of parallel-ruler-triangle-120x40 from the free STEP; not to scale.

Fits with

Sliding-triangle parallel ruler, isometric render of a generated part
Sliding-triangle parallel ruler3 sizes★ 1 file

Questions

What is a sliding-triangle parallel ruler?

Right triangle with 120 and 40 mm legs, 4 mm thick: two of them, laid hypotenuse to hypotenuse, form a 120 × 40 rectangle whose long edges stay parallel as one triangle slides along the other.