Trammel cross plate 140 × 140 × 8 with crossed 6.2 mm grooves — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/trammel-cross-plate-140/  (CC BY 4.0)
Basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance
Catalog version: 2026-10-20

Overall (mm): length 140.0, width 140.0, height 8.0
- 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).

dimension  value
plate  140 × 140 × 8 mm
grooves  2 × 6.2 wide × 5 deep, crossed
holes  4 × Ø3.4

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Henry T. Brown (1868, public domain): Five Hundred and Seven Mechanical Movements — scan on archive.org — web — Publisher's page; dimensions are facts — https://archive.org/details/fivehundredseven00browiala
- 507movements.com: Brown's movement No. 152: figure, his text and an animation — web — Publisher's page; dimensions are facts — https://507movements.com/mm_152.html
- Xem Studio: drawing — web — Publisher's page; dimensions are facts — https://xemstudio.com/objects/elliptic-trammel-mechanism/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/trammel-cross-plate-140/index.json
API: https://xemstudio.com/api/geometry?object=trammel-cross-plate-140