NASJI scale and layers teaching sample

Original manual geometry prepared by NASJI, 24 September 2026.
Released under CC0 1.0: https://creativecommons.org/publicdomain/zero/1.0/

Units: millimetres. Outline: 200 x 120 mm. Four holes, diameter 10 mm.
Hole centres: (20,20), (180,20), (20,100), (180,100).
M-OUTLINE: outline and holes. M-CENTER: centre marks.
M-DIMS: dimension witness lines and labels. M-NOTES: instructions.
Dimension labels are reference text and line entities, not associative dimensions.
This is a scale/layer exercise, not a fabrication drawing or AI-generated result.