I wanted to add Endcap covers to my Sphinx 55 build without using screws to hold them on. I only needed it for 2060. Since these were similar to all the other V-Slots, I made it customizable for all the sizes. You can either use the thingiverse customizer, included STL files or download the openscad file & use that. I used the profile https://www.thingiverse.com/thing:2937519/ to start with for the exterior, but it was too tight with some PLA's I use. I ended up using this profile https://www.thingiverse.com/thing:940458 as a template for both the interior & exterior clips.
This will work with V-Slot 2020, 2040, 2060, 2080, C-Beam & 4040. I have only tested fit with 2020, 2040 & 2060. I was going to just make a clip for the interior cavities, but 2020 does not have that.