For some AM Designers digital design tools are the easiest way to express and explore their design ideas.
For others sketching is still important, albeit for complicated shapes sketching reaches its limits.
The relationship between sketching and AM design is ambivalent. Some AM designers are more proficient in digital design tools and they feel more comfortable expressing and exploring their ideas only digitally. For others, hand sketching is still important, but with digital design tools, they can do things that would be difficult with hand sketching.
"I still use paper. I first draw what I am thinking, and then I build it in Grasshopper"