![]() It will then open its wings and fire its guns while playing the corresponding sounds from the game. The internals are even more impressive with servos, microswitches, and a whole array of 3D-printed gears, cams, and levers.Ī motion sensor activates the Turret whenever a human moves nearby. The outer shell is a beautiful shiny white, an effect achieved through patient sanding, priming, and spraying with high-gloss paint. We’re making a note here, “huge success”. The result, as you can see in the video embedded below, was a triumph. decided to use his 3D printer to create a Turret that can move and speak exactly as it does in the game. Inside the Turret it’s full of moving parts. One beautiful example is ’s physical rendition of a Portal Turret. Even today, more than a decade later, we regularly see hackers applying their skills in recreating some of the game’s elements. Characters became cultural icons, quotes became memes and the game became a classic along with its 2011 sequel. I might add this later, or let some other keep people at my hackerspace do this, but this is not present at the moment.Thanks to its innovative gameplay and quirky humor, Portal became an instant hit when it was released in 2007. The firmware can handle autonomous operation, but the software does very little automatically at the moment. Also, the autonomous operation is not really there at the moment. It is a poor method of tracking targets, but it is a simple way and I was running out of time. Currently it does simple blob tracking with Pygame in python. Now while I would love to say the software could do amazing work, it cannot. Together, they can make all the functions on the turret work. ![]() It also handles the speakers in the base. It looks at either a camera input or manual input, and determines where the turret needs to move. The Raspberry pi is responsible for the intelligent stuff. It can receive commands via serial and executes them. It moves all axes, it has several layers of protection for each motion, it handles all of the leds and servo motors. The Arduino mega does all of the visible parts. The turret is controlled using an Arduino mega 2560 and a Raspberry pi 3+. Luckily, with 4 guns, the chance of 1 working is quite big.Īrduino side wiring fancy schematic Control There are extra weights on each magazine and even with those the guns do sometimes jam up. I said hopefully because gravity fed nerfs work poorly. When the dart hits the flywheels, it is accelerated and shoots out. The rack and pinion then moves the feeder to the front, hopefully with a dart. It moves to the back using a rack and pinion system (shown below). To shoot, first the flywheels are powered. A wire also connects to the spring loaded part, so I can remove the shells, even if the turret is closed.Įach of the guns consists of a gravity fed magazine, a feeder and a flywheel shooter based on 2 outrunner motors. When pushed down, the motor gear disengages the big gear on the pan/open and the shell can be taken off. Because the gearing is heringbone, the gear locks the tilt in place. The tilt motor is a spring loaded hobby servo that pushes into the gear of the pan/open mechanism. the power for the turret comes in at the back.Įach gun has a separate tilt, a set of bearings for the tilt and 2 nerf guns. The tube also carry power wires, speaker wires and an Ethernet cable. The legs are only for show and cannot support any weight. The base has 2 aluminium tubes (painted black) that support the actual turret. Ideally I would love to have a free standing turret, but given the weight and the materials I can use, I have chosen a base. The base provides a support for the turret, and a place for the power supply and speakers. This is the big grey cabinet under the turret. Lets start at the bottom, and work our way up. It also allows me to use less than perfect pictures, so be aware. This is the amount of detail not everyone cares about the same, so I stashed it on this page. In this page I will give a rough overview of what is in the turret and what it does. The Making Of: Full Scale Portal Turret (Part 2). ![]()
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