As seen in my video about what would happen if the Moon was made of Glass!

I needed a giant magnifying glass, and couldn't find one. So I designed one to use instead! It works pretty well and can print on a 250mm size print bed. It comes in two pieces: a handle and a lens ring. The lens ring is designed to be printed flat, just make sure it's not on the threaded side. The handle can print upwards from its base in the middle of the ring!

You'll need this 200mm fresnel lens as well. It's like 20 bucks on amazon: https://amzn.to/3Lpy1XO

Installing the lens isn't too hard but you'll need to flex open the lens ring. It's supposed to just pop in once the print has been pulled apart enough. Be slow and careful but it shouldn't break.