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Version 3.0 - smaller, less complicated gear
This is the final version of the Rainbow Bubble Machine, as I have pretty much given up hope on this project.
Replaced a bunch of gear wheels by a worm drive.
The machine in action
Many likes and positive comments in different places around the LEGO community made me happy though.
Bad luck for "the LEGO guys" that they miss the chance to turn this very special machine into a set, that makes everybody smile who watches it do its wonderful work of colouring the world.
The instructions can be found online now.
A look inside