World’s First FULLY AUTOMATIC LEGO Gear Sorting Machine
Channel: LEGO Technics Rule
Date: 2021-07-08

This mechanical Lego machine can sort Lego gears completely automatically. Firstly, the gears to be sorted are dumped onto a vibrating hopper. The vibrating platform feeds gears onto a conveyor belt which slowly transports them to the funnel. When they fall un the funnel, they hit a platform at the bottom, waiting to be pushed along by the second conveyor belt with long bricks attached to it. These long bricks push the gears along a series of holes. These holes are sized so that the smallest 8 tooth gear falls in the first hole, 16 tooth gears fall into the second hole, 24 tooth gears in the third and 40 tooth gears in the last. 

This machine may look very simple, but the amount of work that went into testing this thing was enormous. The biggest problem I had was the bigger gears getting stuck over the smaller holes instead of gliding right over them. I tried many different things to solve this such as replacing the bricks that had tiles on them with technic beams, but what I eventually settled on was using small 1x1 slopes on the right side of each hole, allowing the gears to be pushed along that instead of a jagged corner.

0:00 Cringe Intro
0:16 Showcase
1:19 Results
1:24 How the vibrating platform works
1:38 How the conveyor belt works
1:57 Dismantling
2:01 How the gears are actually sorted
2:23 How the gears are pushed along
2:40 Outro

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Background music:
Everlasting - Ephixa & Jim Yosef [NCS Release]