1. (noun) the craft of drawing blueprints

• drafting

1. (noun) scale drawing of a machine or architectural plan etc,

• drawing

2. (noun) the craft of drawing blueprints

• craft
• trade

1. (noun) scale drawing of a machine or architectural plan etc,

• horizontal section
• vertical section

1. (noun) the craft of drawing blueprints

• blueprint
• draft
• draught