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Trammel cross plate 140 × 140 × 8 with crossed 6.2 mm grooves

What is the base of an elliptic trammel? · Modern device · basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance

Also called: trammel base, ellipsograph base, cross slot plate, placa en cruz del trammel, Kreuzschlitzplatte (Ellipsenzirkel)

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

length
140.0 mm
width
140.0 mm
height
8.0 mm

Notes

  • 140 × 140 × 8 plate with two 6.2 mm wide, 5 mm deep grooves crossing at right angles through its centre: each guides a 12 × 6.2 slide block; four Ø3.4 corner holes.
  • Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

Trammel cross plate 140 × 140 × 8 with crossed 6.2 mm grooves size chart

dimensionvalue
plate140 × 140 × 8 mm
grooves2 × 6.2 wide × 5 deep, crossed
holes4 × Ø3.4

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. 152: 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

trammel-cross-plate-140plate, z 0..8, grooves on X and YSTEP · 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.
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Plain text: sheet.txt · JSON: /api/geometry?object=trammel-cross-plate-140

Trammel cross plate 140 × 140 × 8 with crossed 6.2 mm grooves, isometric render of a generated part
Render of trammel-cross-plate-140 from the free STEP; not to scale.

Fits with

Elliptic trammel (trammel of Archimedes, ellipsograph), isometric render of a generated part
Elliptic trammel (trammel of Archimedes, ellipsograph)4 sizes★ 1 file

Questions

What is the base of an elliptic trammel?

140 × 140 × 8 plate with two 6.2 mm wide, 5 mm deep grooves crossing at right angles through its centre: each guides a 12 × 6.2 slide block; four Ø3.4 corner holes.