lens -- filter adapter

This is a lens -- filter adapter. I made it because I have a big filter and a small lens, and they don't fit together.

As presented in this format, the lens threads are expected to be 40mm and the filter threads are expected to be 47mm.

I haven't tried modifying the adapter for a smaller filter than lens, so YMMV if you try that...

The design is mostly parametric, so if you use OnShape you can copy it to your account and make a version that meets your lens and filter dimensions by simpl