This Life-Size Dart-Blasting Turret From Portal Will Protect Your Cake - Gizmodo

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This Life-Size Dart-Blasting Turret From Portal Will Protect Your Cake - Gizmodo Posted: 12 Aug 2019 12:00 AM PDT It's taken a little over 12 years, but one of the amazing technologies featured in the game Portal has finally been recreated in real life. No, sadly not the actual portal-making gun, but the autonomous robotic turret sentries that can identify and dispose of targets. Instead of live ammo, however, this 3D-printed replica blasts Nerf darts at unsuspecting lab intruders or escapees. Advertisement Save for most of the electronic parts that give this sentry its autonomous capabilities, which include an Arduino Mega and a Raspberry Pi, almost every last component in this build was created using a 3D printer. Using the "making of" breakdown that Yvo de Haas has posted on Ytec3D.com, which includes download links to all of the source files, you can theoretically build one for your own laboratory or office, but it's not as simple as assembling a Lego set. It's taken about six months to create the turret featured in this video, and it requires skills in everything from mechanics, to electronics, to even programming to get it all working perfectly. You'll also need to know the ins and outs of 3D printers, and be extremely patient as creating the various parts alone took over 300 hours of 3D printing. That's a little under two solid weeks of non-stop extruding. When a target is detected, the turret can automatically open, deploying a set of four Nerf-like blasters as its side extend, which have about 20 degrees of movement in all directions. Instead of using compressed air to fire foam darts, each blaster uses a flywheel made from a quadcopter electric motor spinning at 25,000 revolutions per minute. That's enough kick to send a dart flying at over 60 miles per hour when launched, and enough to make a human target regret ending up this sentry's laser targeting beam.

Locating Targets With Charm Courtesy Of A Life Size Portal Turret - Hackaday Posted: 12 Aug 2019 12:00 AM PDT What better way to count down the last 7 weeks to a big hacker camp like SHA2017 than by embarking on a last-minute, frantic build? That was [Yvo]'s thought when he decided to make a life-sized version of the adorably lethal turrets from the Valve's Portal video games. Since that build made it to the finish line back then with not all features added, he finished it up for the CCC camp 2019 event, including the ability to close, open, target and shoot Nerf darts. Originally based on the miniature 2014 turret (covered on Hackaday as well), [Yvo] details this new project in a first and second work log, along with a detailed explanation of how it all goes together and works. While the 2017 version took a mere 50 days to put together, the whole project took about 300 hours of 3D printing. It also comes with four Nerf guns which use flywheels to launch the darts.  The wheels are powered using quadcopter outrunner motors that spin at 25,000 RPM. The theoretical speed of a launched dart is over 100km/h, with 18 darts per gun and a fire rate of 2 darts per second. The basic movement control for the system is handled by an Arduino Mega, while the talking and vision aspects are taken care of by a Raspberry Pi 3+, which ultimately also makes the decisions about how to move the system. As one can see in the video after the link, the system seems to work pretty well, with a negligible number of fatalities among company employees. Though decidedly not a project for the inexperienced tinkerer, [Yvo] has made all of the design files available along with the software. We're still dubious about the claims about the promised cake for completing one of these turrets, however.

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