Note: This is thing is not maintained on here any more, further development/support it will happen on its Youmagine page.
This is an alternative top lid for the popular "Raspberry Pi Case 2" by redpeppr, featuring a Raspberry Pi logo shaped vent as seen in the "Raspberry Pi case" by HansH.
I like redpeppr's case as it properly encases all ports, but I like the Raspberry Pi shaped vent on HansH's case, so I thought I'd just mix the two.
To create a complete case just print this top lid and either the regular or VESA mount bottom part from here, add a Pi and be happy.
I printed mine in black PLA with a 0.4mm nozzle, 0.2mm layer height and skin, 20% fill density.