Ender 3 camera shutter switch

Switch adapter for external shutter for my DSLR camera i use to create time-lapse videos.
I use it combine with custom time lapse plugin for Cura. One part is mounted directly to X axis profile, second to nozzle fan with original screw. Distance between thumb and switch can be easy modified with fi 5mm screw and tighten with M5 nut.
Because of 0.8mm thread pitch used in project it will be good to print with 0.2mm layer height.
There are some projects available internet which use belt tensioner screw to mount switch. In my project I intentionally use additional screw to have possibility to move switch and tight X axis belt independently.