Design Drawing class sketches

Sketches from a couple of months ago, made during the classes of Design Drawing at the faculty of Industrial Design Engineering, TU Delft. Quick sketches to help explain basic theory (and some other stuff) to first year students.

Rietveld's Kratstoel

Assignment for my job at the faculty of industrial design engineering, department of design drawing.
This is a chair designed by the famous dutch architect, Gerrit Rietveld.
Linework with fineliner, coloring done in Photoshop.