3D Printed Solenoid Engine

This engine is mostly 3D printed, and was designed to drive an RC car. It took about 10 hours to design in CAD and maybe 15-20 hours of 3D printing. We managed to reach 3000RPM with a very makeshift flywheel... A new engine is currently being built which is a V6 that features many improvements over this engine. A video will be uploaded as soon as its running