Retractable knife

cults3d

This is a simple model of a retractable knife, the model consists of 3 pieces, the handle, the knife and a safety. For its operation is necessary a rubber band, easy to get. To assemble it, place the rubber band on the knife, then insert the knife into the handle, attach the rubber band to the grooves of the handle and finally place the safety catch. Half of the knife can be printed in red to simulate blood, or it can be painted.