Samyang 135mm Lens Collar - Remixed

Since lens collars for the Samyang/Rokinon 135mm f/2 lens are hard to come by I decided to look down the 3D printing route.

I found a really clean looking design by SleeplessLights but didn't want the hassle of adding inserts, so I remixed it to use regular nuts instead. The screws I used have a countersink head so I also accommodated this.

I also removed the attachment points on the sides as I don't plan to add anything to it except maybe a guide scope on top (I will redesign the top plate if I ever bother to do this)

The only hardware required now are;

2x M4 x 12mm bolts + nuts (for the hinges on the rings) 4x M4 x 12mm bolts + nuts (for mounting the top plate) 2x M4 x 20mm bolts + nuts (for clamping the rings closed) 4x M5 x 20mm bolts + nuts (for mounting the bottom plate) 1mm thick single sided foam tape or similar to go on the inside of the rings (They are slightly oversized)

EDIT - 24/04/2023

Back in January I bought a guide scope and finder shoe (specifically the "Astro Essentials Finder Shoe" https://www.firstlightoptics.com/finders/astro-essentials-finder-shoe.html)

I redesigned the top plate to allow the attachment of the finder shoe, some post processing will be needed to create a snug fit.

I have also added a STEP file which includes all of the parts, including both top plates.