By admin / December 26, 2022 Mechanical 3d prints | Part 5Full Info / Credits for the individual 3D prints items are available here,Kindly Support all the Creators. Model CreditsAir-balloon-motor-for-lego-model_files > https://www.printables.com/model/25432-air-balloon-motor-for-lego/fileswind up fan 3d printed > https://www.thingiverse.com/thing:4901910/filesFully 3D Printed Catapult > https://www.thingiverse.com/thing:5325832/files