The arm was built using a similar method to the body. Since I will be making a mold of this, only one master arm is required and I'll then cast it twice for the left and right side. While I was making the body I was also working on the arm. I used turtle wax.īody ready for its mold. The final coat was wet sanding with 1000 grit and then the surface received a coat of wax. Slowly working my way to finer and finer grit sandpaper, I ended up with a glassy smooth finish. Next up on the body was many many coats of primer with lots of sanding between each coat and spot putty to fill in any low spots that popped up. I spent many many hours sanding and refining to get the surface curves just right. The secret when trying to get a very smooth surface is patience. I covered all of the curved surfaces of the body with an 1/8 sheet of clay and waited 24 hours for it to dry.Ī day or 2 later after the clay was fully cured, I sanded the surface as smooth as I could get it with my hand sander. After 24 hours it is hard as a rock and can be sanded or carved. You work it just like clay, even using water to smooth it out. You mix equal parts A and B and have about 2-3 hours of working time.
Apoxie Sculpt If you have never used this stuff, I highly recommend it. The styrofoam was then covered with one of my favorite materials. I cut down and shaped the roughly 10 pieces to fit into there respective slots leaving about 1/8 inch for the material it would be covered with. The next step was to fill in the gaps with styrofoam. The dimensions for this were pulled straight from the blueprints and after an afternoons worth of work, I had skeleton frame work that looked like the body of a turret. This stuff is great because it has no grain and can be cut and sanded smooth with relative ease. My personal material of choice is MDF (medium density fiberboard) which can be picked up at any hardware store in 2x4 foot and 4x8 foot sheets. With the size decided, The first step was building the framework for the body. The main body and arms will be hollow while all the pieces relating to the legs will be solid for strength. These durable shells will be perfect for the final turret. The best way to achieve this with the body and arm panels is to create molds and cast hollow pieces. The most important thing about this project is keeping it as light as possible. These blueprints will also make a great poster to hang on the wall with the finished project. My friend did an outstanding job adding in little extra details like the Aperture logo and other details on the blueprints. I then printed them out to scale and pulled all the measurements I would need from them as I worked through the project. I had a friend of mine, Tyler Garrison, who is a wiz with Illustrator whip me up a set of blueprints with a height of 38 inches to the top of the antennas. This way it wouldn't take up an enormous amount of space in my place. This also seemed like a great size to display it once it was finished. I decided a more reasonable height to undertake was about 36 inches.
Due to the nature of the design, I decided that making one this size would be prohibitively problematic and very expensive.
I got in touch with someone at Valve and they told me that the turrets in the game stand 58 inches tall. The very first step in the project was deciding how big I wanted to make the turret. Materials and Tools used are broken down for each section. A little bit more work but definitely worth the effort. Since nobody makes them I had to build one myself. The Turrets are so adorably deadly that I had to have one of my own. The turret for which this instructable is about is one of only two characters you interact with in the entire game, the other being GLaDOS. Hopefully there will be a lot of information that you can pull out of this and use for all kinds of different projects.įor those that are unfamiliar with Portal, It is a fantastic puzzle game made by a studio called Valve that requires you to use two portals to solve all kinds of different puzzles.
This is a fairly in depth project that will cover every stage of construction and all the techniques I used along the way. In this Instructable I'm going to show you how I went about building my very own life size talking Portal Turret from start to finish.
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