LegoGBC presents us his latest GBC module, a Pneumatic Tower which was inspirated by Akiyuki, but with a 90 degrees angle.
“It uses a single switch and 2 cylinders. Because the air will always go to the cylinder which job is easier, the movment sequence works perfectly with one switch.
2 PF M motors are used to compress and change the switch’s position, (2 because one PF M was too slow and I don’t have an XL motor)
It was very hard to build the body of the crane as the cylinders try to “escape” from turning the gears.”
You can view the Eurobricks post here!