Lego Pneumatic Engine - Axial 4 (swashplate)

This is a four cylinder axial engine. It uses a technic turntable as a swashplate; thanks to Johnny Simonyan who pointed out that Mark Bellis (lego pneumatic god) has built a compressor using this concept. I am not above admitting that this was a very challenging build. The turntable really does not move very smoothly under pressure, and creating a proper ’cradle’ to attach the cylinders to was also challenging. At one point, due to bad cylinder timing, the engine actually pulled the turntable apart :-) So