Slot guide plate 90 × 30 × 5, 6.2 mm slot (74 long) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/slot-guide-plate-90/  (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 90.0, width 30.0, height 5.0
- 90 × 30 × 5 plate with a 6.2 mm wide, 74 mm (end-to-end) round-ended slot: guides the 12 × 6.2 slide block on a straight line; four Ø3.4 (M3 clearance) corner holes.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

dimension  value
plate  90 × 30 × 5 mm
slot  6.2 × 74 mm
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. 339: figure, his text and an animation — web — Publisher's page; dimensions are facts — https://507movements.com/mm_339.html
- Xem Studio: drawing — web — Publisher's page; dimensions are facts — https://xemstudio.com/objects/scott-russell-straight-line-mechanism/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/slot-guide-plate-90/index.json
API: https://xemstudio.com/api/geometry?object=slot-guide-plate-90