Bike cassette simulation, for cleaning purpose

When cleaning your bike it´s nice to hang your chain in something that simulates the original cassette, moving sideways when you move the derailleur.
This does exactly that! No more, no less: https://youtu.be/Nnn9oC7mkXc

Please note: Works best when shifting one gear at the time. If you do a fast up or down shift
the gear wont have the time to move sideways and the chain will fall off.

Print and complete with a M8 nut and a screw in around 70mm length.
The base is printed in one piece