Propeller 5 bladed Free 3D print model

This is a 84mm diameter 5 bladed propeller designed to fit a 3mm shaft. It is counter rotating and produces thrust away from the motor, so is intended to be fitted to the back of an item to be pushed. The propeller weights 3.5grams and at an RPM of aprox 20,000 produces 82 grams of thrust. Thanks, ReneeCel