Holder for FluxOptic Lens

Surplus Shed sells a water-filled adjustable lens called a FluxOptic.  It doesn't come with any way to attach it to anything, so I built this sleeve that grips it tightly. The sleeve is attached to a 5 ¼ inch lens board (not a very common size) but I've included the Fusion model so you can design your own. The model is parameterized in hopes that that will make it easier to adjust, should you need to. 

The model is two parts - the main “sleeve” and lensboard; and a separate cap that screws on to hold the FluxOptic in place.  The sleeve is built with indentations for the built-in knurled ridges on the lens, keeping it from twisting. 

The 3mf files were set up for a Core One and include extra fine and extra slow movements for the threaded areas. Doing everything at default speeds does not make for good threads.

I made mine from Prusament PETG. Note that many filaments look opaque but are in fact transparent to some wavelengths of light, so consider painting the resulting model with matte black paint before using it for photography.