Fan Speed Adjusting Knob

A classic mechanical problem solved with 3D printing. The original fan knob broke, so I took the opportunity to design a stronger, better version.This knob is engineered for a precise press-fit. It was modeled from scratch using CAD to ensure all dimensional tolerances were met, resulting in a durable and functional fix.Design Goal: Durability and improved ergonomics.Recommendation: Print at 100% infill with a strong filament like PETG or ABS for long-term use.( i printed in PLA)Application: Direct replacement for the original knob on.Dimensions:Overall diameter - 45mmshaft diameter - 3mmHex nut diameter - 7mmand use a suitable screw for the hex nut