There is something inherently fascinating about tiny mechanical devices, especially when you’re used to seeing much larger versions. This is the case with [Penguin DIY]’s tiny centrifugal ...

He created an excellent centrifugal pump out of 100% LEGO. While mostly a curiosity, you can definitely get a sense of how the mechanics work.

The monoblock construction of the SIL pump range eliminates the need for a bearing unit. This solution minimises the number of wearing parts and the need for maintenance.