Electric bike chassis, Mold and die, Screw compressor, Compressor cyclinder

Electric bike chassis : This is a concept design for a project development, design is ongoing for feasibility. Mold and die design : Plastic components die,mold base.mold plates,ejection system,hot runner system for a component. Screw compressor : 3D modelling Compressor cylinder : 3D modelling for a 130L compressor