A propeller for a RC-plane, for high-speed-models like pylon-racers b.e.. The prop cn be printed as it is, no raft, brim or support is needed. The printout needs to be tepered in a baking oven, at a temperature of 230 °C for about 30 minutes. The printout has to be covered by salt that has been grinded to powder, indside a baking pan. It has to be covered by the salt at the bottom and the top, must be completely covered.