Dawid Marasek’s Scissors Mechanism is a very simple yet smart miniloop GBC module. It can only carry five of your favorite balls at a time but relies on this exact number of balls to trigger a toggle mechanism. You’ll for sure love to see the elevator mechanism which folds and unfolds. Very cool!
Original design by: Dawid Marasek
Number of parts: 223
Original Blog Article (Polish): here
Complexity for building: 
Price for Building: €, cheap
Scissors Mechanism, on Dawid Marasek YouTube channel
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Either the part number is 4476a or 4476b.
Hi,
I cannot import the XML formatted file into bricklink.com, because part number 4476 is not in the bricklink.com catalog.
Perhaps the part number should be 4476b(?)
Here is the relevant item in bricklink.com.
“Support 2 x 4 x 5 Stanchion Inclined, 5mm Wide Posts
Item No: 4476b”