lens -- filter adapter

thingiverse

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 simply modifying the values. There is also a suppressable extrusion that adds/removes an extra ring around the lens that I added for additional stiffness and tighter fit on my lens. Maybe you don't want it. Here is the OnShape link: https://cad.onshape.com/documents/cf30edfc63e17e3208105c68/w/1c8433e98a9881a8757dc935/e/be0f8c578931a0d0f9b449dd I've printed it and it works well! I adjusted the size of the thread interfaces: The model does NOT have threads, but the threads of the lens and filter cut into the plastic since the plastic surface is sized to slightly interfere with the threads. Please leave me comments if there is anything you notice I may have overlooked, or that should be changed. I hope it works for you! Met vriendelijk groet, Dustin