![]() ![]() Illumination was provided by two 5mm yellow LEDs and two 3mm red. I wish I had taken time to document the rest of the build, because things take a bit of a jump here – unfortunately, my short timeframe meant that I spent more time cranking on the little angry spud and less time behind my camera. A set of power and ground lines run up through the claw and into the hollow potato for the LEDs Illumination is controlled by the switches in the back of the Portal Gun itself, and GLaDOS turns on and off with the rest of the illumination. I found that lightly scraping the high areas with a damp paper towel pulled this color off and simulated peeled potato skin rather well. Layers of dirt and discoloration were added with an airbrush and acrylic paint. The surface had a sort of satin feel to it. I found a textured Krylon tan paint that worked pretty well for a basecoat. After this, more wire details were added. The eye of the potato was molded in more omoo and cast with SmoothCast 300. In order to keep the scale correct, some things (like the alligator clips) had to be cut down. The whole of this build is mostly stuff that can be sourced at a local hardware store. Smaller details were added with wire and roofing nails. The oversized chip on the side of the potato was cut from sintra as well. GLaDOS’s “eye” was made on a lathe using laminated sheets of 1/2″ sintra. Once resin was added, the potatoes were slush cast in 65D resin to make lightweight replicas. If you’re noticing the lack of a pour spout, these were designed to be hollow cast pieces. These two spuds were tossed into a mold box and molded in Smooth-On’s Omoo silicone. During a grocery shopping trip, my wife scoured the produce department to locate two likely candidates to live on the end of the ASHPD. While the additional potato-GLaDOS wasn’t a requested item, the release of Portal 2 prompted me to put one together before delivery.ĭue to the very short timeframe, I opted against sculpting a potato from scratch. This was a fun project, done as a small add-on to the third (and final!) Portal Gun commissioned by the guys at VALVe Software in Seattle.
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