They plan to design one shaped like a triangle for pure crack climbing and another with less downturn for more slabby conditions.

FORBES: Design A New Foot If The Shoe Does Not Fit -- Laser Sintering a Prosthetic Leg

The latter will consist of three free-standing units a square glass pavilion (as a workroom for the sculptor's poet wife), a tall triangle of recycled steel (forming the sculptor's studio) and an arc-shaped monolith of untreated wood, whose patina will turn grey with age (for the couple's house).

ECONOMIST: Building design