Here's a nice way to free up desk space when using or storing your MacBook Pro in clamshell mode! This was designed around a M1 MacBook Pro but should work for other models. Print in the orientation that it loads in(on its side). 

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I recommend a minimum of 3 walls, 2 top/bottom layers, and 12% infill. The more the better in this scenario. I used PLA for this but any material of your choice would work. 

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Happy printing and please post your makes!