If you need a lens for a project, chances are pretty good that you pick up a catalog or look up an optics vendor online and just order something. Practical, no doubt, but pretty unsporting, especially ...

You have a broken gear you need to fix, but there’s no equivalent part available. That’s the issue [Well Done Tips] faced with a plastic gear from a lawnmower. While we’d be tempted to scan the gear, ...

In this video, I conducted an epoxy pouring experiment, casting 8 gallons of epoxy resin in a single pour, exceeding the manufacturer's recommended limits. The pour reached up to 11" thick, four times ...