. >> we visited the first inside printing conference and expo at the jacob javitz center in new york city to get a firsthand look at this emerging technology. >> a bracelet that has moving parts once it comes out. that's all one piece. >> here is how it works. >> it draws a picture in plastic. the way it does that is it pulls plastic in from a spool and squirts it through a little nozzle. it draws, lifts up and draws another picture in plastic on top of that and layer by layer, it builds up the model. >> a hacker, teacher, tinkerer and thinker. he and a group of gearhead friends got together and created a 3d printer a few years ago. >> he we got our prototype to work, we quit our jobs. and our goal was to change the game and bring 3d printing to people so they could put them on their desktop and actually innovate personally, interact with the machine. >> just like the replicator in "star trek," make r bot is turning people with little to no experience into entrepreneurs. coming up with an idea that makes the square a device to allow credit cards work better. >> between the square and