With Instructables you can share what you make with the world and tap into an ever-growing community of creative experts.
share step-by-step photos with text instructions
share one or more photos in one step quickly and easily
share your how-to video
These are the instructions for my popular design of a laser turret from Portal. It's all Lego; you won't need any other materials to make this nice di...
Here are the parts you'll need. You may have some, most, or all of these in your own collection; if not, you can get them from Bricklink.com (or Lego'...
Onto the build! I'll add hints down here for the Lego-illiterate. ;)
Yes, the tiles are supposed to swing back and forth loosely here. They will be secured later.
Unlike the previous step's bricks, these have studs (the knobby things) on all four vertical sides -- they are often called "travis bricks". This step...
None of the non-white pieces' colors here matter much; they won't be very visible.
Notice that you do the same thing on the other side.
This connection may be a little loose; using newer clips or gently squeezing the clips before attaching the brackets can help.
The 1x1 slopes are called "cheese slopes", one of my favorite parts.
This one can be a bit tricky; the bases of the sticks, when put in together, should stick tight in the red plate.
Fit the previous assembly in the 1/2-plate gap that goes around the body. Try to fit the balls of the lever handles in the gap in the middle; this may...
Did you get the eye in? Great!
The tap's top can move around a bit within the slope, making for some nice angles.
Depending on the parts you have, you may have to pull the hands out of your minifigs' arms. It's okay, they won't mind.
Once you've adjusted the legs to your liking, congratulations! You now have your very own Portal turret. I recommend using it only as a display trinke...
These instructions were built in LDraw/MLCad, then screencapped in LDView and edited in Photoshop Elements.
Oh, right. You're wondering how I achieved the laser in my photograph? Don't worry, your turret won't actually kill you. Materials needed for laser e...
LEGO :: PORTALby Lego MOCs
Lego Rocket Turret From Portal 2by coopersmom726
LEGO PORTAL!by One.
Lego portal kit (for your portal stop animation)by atomiclegocreations
Lego Portal Turretby flapper501
Lego Portal Turret 2.0by banana man123
Build a Polar 3-D Printer from Legosby Gene Hacker
unmaned lego rifle turretby stupidninja
Game And Movie thingsby squid are taking over
Lego Portal Gunby monsterlego
Download our new apps for iOS, Android and Windows 8!
© 2014 Autodesk, Inc.
PDF DownloadsAs a Pro member, you will gain access to download any Instructable in the PDF format.
You also have the ability to customize your PDF download.