Gacha/Surprise Ball Machine

Print this machine from my wife who is a schoolteacher. She used it as a reward system in her room. It uses standard 45 mm balls that you can find on Amazon.This is my first ever ground up design. It was very challenging with very large pieces. Took quite a bit of filament to dial it in. You will need a piece of 220mm X 130mm plexiglass and 4&#34; spring. Edit/V2:Changed some of the parts for easer assembly.Added instructions on assembly.Knob AssemblyAll the parts needed for the knob assembly. Glue knob shaft to knob. <img src="https://makerworld.bblmw.com/makerworld/model/DSM0