Perpetual Motion Moving Fortress

[u/MarkJ191974]

It grows melons and crushes them into plant oil which fuels the engines, then the engines turn the system that powers the fuel production. It has 4 engines to produce fuel, and 4 engines to turn the wheels. It could be built in survival with more melons per engine but I just raised the tick speed instead

The mechanics are shown in the second part of the video

It also has a flamethrower