WEBVTT 00:00:00.080 --> 00:00:07.359 So 3D printing has really taken off and has proved to be useful for making 00:00:04.480 --> 00:00:12.320 everything from spoons to medical devices to even super cool Linus action 00:00:09.920 --> 00:00:17.039 figures. But there's another side to this three-dimensional coin, so to 00:00:14.559 --> 00:00:21.520 speak, that will make sense to anyone that's ever bought one of those clunky 00:00:19.279 --> 00:00:26.400 office printer copier things. And I'm talking, of course, about 3D scanning, 00:00:24.800 --> 00:00:30.800 which is exactly what it sounds like. the process of scanning 00:00:28.080 --> 00:00:35.200 three-dimensional objects or models into a computer. Now, you can probably guess 00:00:33.360 --> 00:00:39.600 that it's a little more complicated than your old flatbed scanner, but the 00:00:37.600 --> 00:00:44.239 general principle of operation is actually fairly similar. The scanner 00:00:41.680 --> 00:00:48.800 takes many samples of whatever it's looking at and stitches them together to 00:00:46.719 --> 00:00:53.760 spit out a coherent image, or in this case, a 3D model. Also, somewhat 00:00:51.520 --> 00:00:59.199 similarly to regular 2D paper scanners, many 3D scanners use light in some way, 00:00:56.800 --> 00:01:02.879 such as with laser scanners, which can acquire the shape of an object by 00:01:00.879 --> 00:01:07.600 firing, you guessed it, freaking laser beams, at their targets. But instead of 00:01:05.600 --> 00:01:11.600 burning and eating them, some laser scanners capture shapes by calculating 00:01:09.920 --> 00:01:16.400 how long it takes for the laser beam to leave the scanner, hit the object, and 00:01:13.520 --> 00:01:20.080 reflect back to the scanner. Others use lasers in conjunction with a camera to 00:01:18.479 --> 00:01:24.560 figure out the laser mark's exact location, which the scanner uses to 00:01:22.400 --> 00:01:29.040 construct an image. But not all light-based scanners use laser beams. 00:01:26.799 --> 00:01:34.159 For example, you might have one 3D scanner on top of your TV right now. I'm 00:01:32.159 --> 00:01:38.640 talking about the Connect for Xbox, which shines infrared light, invisible 00:01:36.640 --> 00:01:43.119 to the eye, on your body while you're playing Just Dance or whatever. Then it 00:01:41.040 --> 00:01:47.040 uses a small infrared camera to determine your body's position and 00:01:44.960 --> 00:01:50.399 whether the club just can't even handle your moves right now. There's also 00:01:48.880 --> 00:01:55.040 something called structured light scanning which can use plain white or 00:01:52.560 --> 00:01:59.439 blue light, not lasers by the way, fired at the object in thin lines to figure 00:01:57.520 --> 00:02:05.360 out the shape based on the distortion of the lines from other viewing angles. 00:02:02.159 --> 00:02:07.840 However, light-based 3D scanning has its 00:02:05.360 --> 00:02:11.840 limits. Remember optical mice? bulbs still have them. But you know, optical 00:02:09.360 --> 00:02:17.200 mice, they have a hard time tracking on glass or shiny surfaces. And 3D scanners 00:02:15.120 --> 00:02:21.840 that use light can have issues scanning objects that are transparent or made of 00:02:19.360 --> 00:02:26.879 highly reflective material. In these situations, it's often better to use a 00:02:23.920 --> 00:02:32.640 contact scanner. These scanners actually touch whatever it whatever it is that 00:02:30.560 --> 00:02:38.720 you're trying to scan in order to figure out what it get get off to figure out 00:02:35.920 --> 00:02:43.200 what it looks like using different kinds of probes attached to either hinges or 00:02:41.120 --> 00:02:48.879 joints that can send a position back to the computer to generate a super precise 00:02:45.760 --> 00:02:51.599 image of an object's surface. But how is 00:02:48.879 --> 00:02:55.360 all this technology put to use? Well, when combined with a 3D printer, you're 00:02:53.680 --> 00:02:58.959 basically one step away from your own Star Trek replicator, complete with 00:02:57.040 --> 00:03:03.440 datab banks full of all your favorite 3D foods. But thanks to the imaginations of 00:03:01.519 --> 00:03:08.239 people, there's a lot of uses Gene Rodenbury didn't think of. Video game 00:03:06.239 --> 00:03:12.640 developers are using 3D scanning to capture accurate models to be used in 00:03:10.879 --> 00:03:17.519 their games instead of designing them from scratch. Doctors and dentists use 00:03:14.879 --> 00:03:22.480 them to fit orthodontics. And historians are using 3D scanning to preserve and 00:03:20.000 --> 00:03:29.680 document old artifacts, statues, and even buildings. Also, a huge amount of 00:03:26.480 --> 00:03:31.920 mechanical parts used in industry are 3D 00:03:29.680 --> 00:03:35.519 scanned to verify the quality and structural integrity. So, there's 00:03:33.840 --> 00:03:40.239 actually a decent chance that your car was scanned at the factory to make sure 00:03:37.599 --> 00:03:44.519 the engine won't explode. And on the subject of explosion, doesn't shopping 00:03:42.000 --> 00:03:48.879 for clothes just make your head want to explode? Personally, I hate it. Try this 00:03:47.040 --> 00:03:51.680 on. Oh, no. Try this one. That looks good. That doesn't. I don't know. I just 00:03:50.239 --> 00:03:57.519 Isn't there an easy way to just do this online so I don't have to deal with the hassle of crowds and malls? Yes, there 00:03:54.879 --> 00:04:01.599 is. Jack Threads. They've got a curated selection of brands, both known and 00:03:59.920 --> 00:04:05.519 diamond in the roughy unknown. Most of the stuff I have here is known brands. I 00:04:03.200 --> 00:04:08.799 think Next Level, uh, Oakley and Under Armour. Um, and they've got plenty of 00:04:07.519 --> 00:04:12.799 summer styles available like short sleeve shirts in prints, summer 00:04:10.640 --> 00:04:16.000 sneakers, and board shorts. It's a great value so you can get the most bang for 00:04:14.480 --> 00:04:19.840 your buck on the things that you love and need. Not to say that I guess you 00:04:18.239 --> 00:04:23.120 really need clothes. I mean, you guys can't even prove that I'm wearing pants, 00:04:21.600 --> 00:04:27.520 for example, in these videos. We always shoot me from here down. In fact, today 00:04:24.800 --> 00:04:30.000 I'm not wearing pants because I'm wearing 00:04:30.120 --> 00:04:36.840 shorts, which strictly speaking are short pants. But the point is, you can 00:04:34.080 --> 00:04:39.520 get an additional 20% off by visiting jackfreads.com/techquicky, which is 00:04:38.080 --> 00:04:43.520 linked in the video description, and entering coupon code techquicky at 00:04:41.840 --> 00:04:46.720 checkout. Don't buy what everyone else has. Skip the mall and shop Jackthreads. 00:04:45.280 --> 00:04:51.040 You can even shop on their iOS and Android apps if you want to shop where 00:04:48.400 --> 00:04:53.440 you want, when you want. So, I guess that's pretty much it, guys. Like the 00:04:52.240 --> 00:04:58.639 video if you liked it. Dislike it if you thought it sucked. Leave a comment. If you have suggestions for future fast as 00:04:56.960 --> 00:05:04.479 possible and if you're looking for something else to watch right now, check out the Linus Tech Tips channel where we 00:05:01.600 --> 00:05:09.520 recently did a painting tutorial for your computer monitor. Espeno good. Go 00:05:07.919 --> 00:05:12.479 watch. Thanks for watching and as always, don't forget to subscribe.