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Rolling parallel ruler blade 200 × 24 × 6 with lugs for a Ø3 axle

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

Also called: rolling ruler blade, parallel ruler blade, regla paralela de rodillos, Rollparallellineal

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

length
200.0 mm
width
24.0 mm
height
13.0 mm

Notes

  • 200 × 24 × 6 straight-edge with four lugs holding a Ø3 axle 8 mm above its underside and two 5 × 20 openings at x = ±60 (5 along the blade) through which the Ø18 rollers reach 1 mm below the blade; the rollers' rims do the guiding, the blade's long edges do the drawing.
  • Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

Rolling parallel ruler blade 200 × 24 × 6 with lugs for a Ø3 axle size chart

dimensionvalue
blade200 × 24 × 6 mm
axle holesØ3, centre 8 mm above the underside
roller openings2 × 5 × 20 mm at x = ±60
lugs4 × 6 × 10 × 7 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. 323: 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

rolling-ruler-blade-200-d18blade, z 0..6, lugs to z 13, axle along X at z = 8STEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=rolling-ruler-blade-200-d18

Rolling parallel ruler blade 200 × 24 × 6 with lugs for a Ø3 axle, isometric render of a generated part
Render of rolling-ruler-blade-200-d18 from the free STEP; not to scale.

Fits with

Rolling parallel ruler (blade on two notched rollers), isometric render of a generated part
Rolling parallel ruler (blade on two notched rollers)4 sizes★ 1 file

Questions

What is a rolling parallel ruler blade?

200 × 24 × 6 straight-edge with four lugs holding a Ø3 axle 8 mm above its underside and two 5 × 20 openings at x = ±60 (5 along the blade) through which the Ø18 rollers reach 1 mm below the blade; the rollers' rims do the guiding, the blade's long edges do the drawing.