You know I thought about making this DIY batsignal, but then decided against it. I mean, Batman is really good about showing up whenever you light this thing up, but then when you start talking and turn your back, he always disappears. That’s just not cool. In fact, it’s rude.

But if you don’t mind his disappearing act, you can try your hand at it. You can find all the details for this Batsignal projector at Thingiverse. If you want to call another hero, you can even switch out the stencils.

[Thingiverse]