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https://www.prusaprinters.org/social/229741-wizeus/about
Original part: https://www.thingiverse.com/thing:4546094
which was then remixed / changed: https://www.thingiverse.com/thing:4563449
and later remixed once again by me.
This remix removes some material from the bottom, making it easier to print on a traditional FDM 3D Printer. Thus this model can be printed without having to use supports or having large overhangs.