Holographic red dot reflex sight

thingiverse

Here is a (almost) fully functional red dot sight. I'm not trying to outdo everyone else's guns at the office holiday party, it's just designed on a Nerf stryfe but would probably fit other stuff too. When I say almost, I haven't got the concave lens that eliminates parallax and keeps the dot on target when you move your eye around. It uses a flat piece of perspex which doesn't matter as the Nerf gun is anything but accurate. Plus, mine's white instead of red because I don't have an LED. Other than that, it's flawless. If you can figure out how to make a curved screen, good on you. I've scavenged everything needed from one of those useless solar garden lights from last year that no longer works (it's just the battery that's dead). If you get one with a sliding switch, you'll be golden. Shout out to Andy Williams on GrabCAD who provided the "Red/Green Dot Holographic Sight". It's an AC inventor model that I couldn't open, but I was able to view the STL in Solidworks to get a few dimensions. Nice job, Andy.