Build a Deep Throated Band Saw

These are plans for a home built backyard observatory.

From the plans: "Since he didn't have sufficient, unobstructed space for viewing the sky from his backyard, Reuben thought it would be a good idea to build himself a small observatory on the roof of a nearby garage. So he did. And here's how he did it:"

Really a neat astronomy project, this backyard observatory is a large dome turned by a hand crank.

[read the full plans in the PDF]

How to Build an Observatory radio