let's talk about 3d printing! 3d printing has been around for decades buthas just recently gained popularity. today you will get an introduction to how thesemachines work. take a look at the animation modeling a 3dprinter in action. each time that the head of the machine makes a square motion it isadded a layer. this is how most 3d printers work through a process called additive manufacturing.there are other types of 3d printers but this is the most common one. now watch closely and you will see just whatwas talked about a few seconds ago. the head of the machine is adding to each layer untilit has completed that layer. then it moves
on to the next layer and so on. for thoseof you wondering how the printer knows what goes on each layer or how the printer knowswhat it is printing, i've got the answer for you. 3d printers use cad drawings from a computerand thus know what to print. that being said, you don't have to do cad for a living to beable to 3d print something. 3d scanners exist so that even the technically challenged cansimply scan an object and be able to print it on a 3d printer. now look at this time lapse video of peopleassembling a 3d printer. this goes to show just how affordable and practical it is foryou to have one in your home. in fact, if you check out kickstarter you will see thatthere is actually a 3d printer kit that you
can get for pledging only $100 or more. theprinter i am referring to is a photolithographic 3d printer, which is a bit different fromthe one you are watching these people build, but is still quite amazing if you think aboutit. one hundred dollars, for your own 3d printer. for you starwars fans out there, here is a3d printer printing out yoda keychains. now i know what you are thinking by now. the voicein your head is saying, well aren't all of these printers just printing plastic? so farthat is all you have seen, but look at this 3d printer. 3d printers can print metal too. if you lookclosely you will see that the back two pieces were once at the same height but at this timethe back piece is now much higher. so if we
can already print metal and plastic rightnow, what are the possibilities for the future? they are quite infinite and it is thoughtthat one day 3d printers will be self replicating, meaning that you will be able to print outa 3d printer. wrap your head around that one, 3d printing out a 3d printer. now let's look at some graphs that i thinkyou should find really interesting. the first one is a stock chart for 3d systems corporation.they have the stock symbol ddd, which is pretty neat if you ask me. get it? 3 dees? okay anyways,notice how it has been going up quite steadily since it hit the stock market? now let's take a look at google trends forthe words "3d printing". it continues to gain
popularity and is at an all time high. whois to say that this trend won't continue? here is a look at a side by side comparisonof these graphs. notice the correlation? i am not saying go put your life savings into3d printing but i am trying to get the point across of how big this industry is and howthere is profit to be made. if you leave this video without at least checkingout the resources below, you are going to
3d printed model of yourself,regret it ten years down the road. the resources in the description below arethe best place to start for anyone who wouldn't mind making a fortune off of this profitabletechnology. you owe it to yourself to at least check out the description and learn a littlebit more.
