I have seen 3 different variations of this process.
1) Metal beads encased in plastic which a laser melts and then the item is placed into a sintering oven burning off the plastic and sintering the metal
2) thin paper which was cut and glued together to make the prototype
3) clear liquid plastic whcih was shot with a laser which made it solidify
All pretty cool processes which can make shapes imposible by other processes.
Speedy
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1983 944 guards red with 16" Fuchs, Host of Wisconsin area timing/ balance shaft belt tensioning party
1987 944S Purchased from Legion. Corvette LT-1 V-8 conversion with Mega Squirt II
Check on progress --->
www.porschehybrids.com/gallery/speedracing944
Favorite Road =
www.tailofthedragon.com 318 turns in 11 miles (11 min 20 sec best run)