Design Concept
This is a simple self assembled planetary gearset where the outer ring as 40 teeth, planets have 10 teeth and the sun has 20 teeth allowing for a wide range of gear ratios. All parts required to assemble this come as printed models and the instructions are found in the pdf file attached.
My Print Settings:
Ender 3 V3 KE - Time: 2h 35min, infill: 15%, Layer Hight: 0.2mm, ( with tree supports )