A lego interpretation of a 3 pendulums harmonograph drawing machine.
My first attemp to create a lego gun, a crossbow with magazine.
A 5 reels fast lego braiding machine, with pro-building instructions !
A switchless pneumatic engine mounted in a steam machine design.
A working lego microscope using a water drop, with dual light with down shutter.
A mechanical calculator, which is capable to add and substrat, featured carry mechanism, keyboard, overflow mechanism and openable part for set up.