3D Printed Slide Projector

thingiverse

You've got a bunch of slides scattered around, but you're missing a projector to bring them to life. That's where this small projector comes in - it measures 16x10x6 cm and can project your slides onto the living room wall. It won't blow you away with its size or brightness, but it gets the job done well enough for enjoying those old memories. Without a diffuser, the corners tend to be darker, but adding a thin milky glass plate helps spread the light and reaches the corners more evenly. Two PC fans take care of keeping the heat sink cool. To load your slides, simply push them in at one end and they'll fall out at the other. I even had an old projector lens lying around, but using a single lens works just fine as well.