I have been designing 3D printer parts for the past five years, and since the fall of 2018 I am the current designer and curator of the Hero Me series of parts and hot-end cooling systems for Creality 3D printers (and clones). I recently released the Hero Me Gen6 Master Suite 3D printer cooling system available here: https://www.thingiverse.com/thing:3182917
A little about my 3D printing cred. My first 3D printer was an M3D Micro in 2015, I then backed (and received) a Tiko 3D, both were Kickstarter projects. My next acquisition was a refurbished Wanhao Duplicator i3 Plus, then a new at the time Creality CR-10 that has been extremely modded (its now a dual Z, dual filament CR-10S, 32bit controller, and more). My next addition was a Creality Ender 3 which is now also extremely modded, then followed the Monoprice i3 Mini (Wanhao) it was too cheap to pass up, and more recently two resin printers, the Elegoo Mars and the Beam3D Prism (also a Kickstarter). Then came the Ender 5 and TwoTrees Sapphire Pro, and most recently 4 Prusa printers. I now have 14 3D printers... I may have a problem ;)