>> this is maker bot plastic. two kinds of material. r the maker bot replicator 2x. we joke that it is noodles. this is the material that you feed into the machine to make anything that you want. >> what is in your hand? >> this is a v6 ford engine block. ford sent it to uyss. it is the real model for a real one. i am a total gear head. i love this model. i love engines. i take engines apart and put them together. i have never seen the inside of an engine. i always have to sought it in half. by making it on my maker bot, i can see where the coolidge goes -- coolant goes. getting a maker bot is also educational and how things are made in the manufacturing process and the world around them. >> where did you come up with the idea? >> 3-d printers have been around for 25 years. but they were missions that were really expensive. i wanted 1 -- they were machines that were really expensive. i wanted one. my friends and i started tinkering. when it worked, we quit our jobs and worked on this so everyone could have went. ceo and cofounder of make

she is wearing a gun bra two phony plastic machine guns attached to her bra all in black. >> no. [ wah wah ] >> stephanie: she is a fem-bothe stairs. >> don't be scared. >> stephanie: i'm sorry, where was i? [♪ "world news tonight" theme ♪] >> stephanie: chris cross is reuniting, bringing us all perilously close to '90s nostalgia. >> they were the cute kid rappers from the '90s. ♪ >> they are now 32. >> stephanie: chris cross coming up everybody. good morning! >> they used to wear their clothes backwards. >> stephanie: yeah, i interviewed them. i felt like an old white dinosaur. >> that wasn't really your music was it? >> stephanie: no, my thing. i remember the general manager once said something about the songs. and i said oh i thought it was just one bad song. i was too old in the '90s. >> yes. [♪ "world news tonight" theme ♪] >> stephanie: nicki minaj, she went to a fancy steakhouse and asked for a-1 steak sauce. >> you don't do that. that is an insalt to the chef. >> stephanie: you don't do that at my friend's restaurant. >> does she serve steak? >> stephanie: i'm sure she does. >> well -- all i know that their chicke