Now our GBC is interactive. You can change the way of balls and collect points.
I've never used a pull-back motor in other constructions than cars. But recenly I got the idea to apply it into the throwing balls like a catapult
in my new GBC.
I was thinking, for a long time, about GBC module using a switch to change the direction of the motor rotation. After many tests and making several prototypes, finally I can introduce a properly working contraption.
Two modules connected - a river and a water mill with an additional water whirlpool which pulls the balls
Ultimately, I'm going to combine this module with module 3 (river), but I couldn't resist presenting it as a GBC mini loop.
In the fourth GBC module each ball is lifted by a scissor mechanism. From the mechanism the ball goes to the balance bar. The balance beam tilts only under the weight of 4-5 balls. The maximum module capacity is 5 balls and the throughput is 20 balls per minute.
In the third GBC module balls move on the river waves. As a water we used blue windows and roller door. Waves are created by the conveyor installed under the river.
Another GBC module is a bucket conveyor. This time, the balls do not move vertically but horizontally from one backet to another.
When I saw with my son World's longest LEGO great ball contraption video, we wanted to build a few our modules. After a few weeks we are presenting First module - simple belt conveyour which transports balls on the 30 cm high and crosses the ball into the basket.