. >> reporter: justin lyons prints at least two hearts a week. >> the same type of defect can be drastically different from patient to patient. >> reporter: and these models are used to help guide life or death surgeries. >> i'm attacking the distance, surprise elements away and the guess work away from what used to be done. >> reporter: and the small lab is able to print more than just visual aids. >> s. >> reporter: from the computer design to the printing takes about 9 hours to make a finished model. it won't be long before they're 3d printing hearts to implanted in patients. >> the next step is to start printing tissue, organs. so we're a couple years ago from having full-fledged organs but we're moving into that range. >> reporter: it's high-tech science for a guy who a few years ago was an animation major. >> he talked about his vision of bringing artists into engineering. processors >> reporter: now he's mentoring more art students in the 3d science of saving lives. >>> a woman in new york says she has a lot to be dprafl for this things. she came a long way after her leg were crashed

lyon's nemesis. nems what the future holds for his fs character on the hit show.w. >> plus justin timberlake one on the hottest stars on the planeta but in his new movie he's a hs troll. troll. to him about the change of pacec that's coming up next.ex right now 10:27. 127 >> what's up, man?>> >>et h him in. >> what's up with you, dude? >> break into mew studio you beat up my people, man you starting to hurt my feelings.s. >> we're in touch with ourh feelings man.fe how do you think i feel.hi i fee >> i gave you the heisman foreif few years but you got funny witt me. me >> likewise. >> we going to talk about nessas >> i'll give her a feature onreo single of an artist might havema choosing you take it or leave yo it?r it? >> here's what i want.e'at i i teach he them all performingfo at this empire, big look. i want nessa on that show. sho i want to see him back up and ad bridge. bridge that's the deal.. >> get somebody to manage him.oh >> i'll get right on that. >> always play a sucker to catch a sucker her mike won't even be plugged.. >> i miss it.t. listen while the world series ii over. >> okay. >> yo