We usually combine hand sketches with computer made 3D models and this is how concepts come up at our office… Sometimes I use the white corrector… the white paint to make some holes in the printed drawing.
We have several different approaches and I’m a firm believer in ideas, I just try to work with my eyes open.
Our drawings are very elusive, we sketch, then we use computers, and finally we combine them. And the progress goes in three or four directions. Slowly we come back to an earlier form, and then some more detailed sketches come up. Ideas keep coming, and then a topic turns up again in another project…