Use a T-square and 30°-60° triangle to draft an isometric pictorial of a flight of stairs.
Drafting, Modeling and 3D Printing with Lydia Sloan Cline
Hand drafting for Interior Design, SketchUp, Autodesk 123D and MakerBot
Use a T-square and 30°-60° triangle to draft an isometric pictorial of a flight of stairs.