This is the case with [Penguin DIY]’s tiny centrifugal water pump built from 5 ml syringes. The pump is powered by a small 8 mm diameter brushed DC motor, likely the same type that is used for ...
He created an excellent centrifugal pump out of 100% LEGO ... with those smooth plates forcing the water through a Technic mounting hole in one of the bricks. [Yoshihito] is known for his ...