Downsizing to a much smaller sit-stand desk, I became determined to mount every object I needed throughout the day to my desk to create more order as well as more open surface area on my desk. To my dismay, there aren't that many under-desk laptop mounts! And, so, I set out to make my own!
This represents my second attempt: for the 2021 MacBook Pro that I have from work. I've previously designed another, for an M1 MacBook Air that I will post soon. Same recipe, different parameters.
I deliberately went for a minimalist look because (1) that's my style and (2) I'm lazy! I even designed the main body in PrusaSlicer, doing some basic arithmetic in my head. This is why the end piece model looks odd: it includes a couple of negative volumes from PrusaSlicer. So, yes, I should have used TinkerCAD or similar from the beginning. Oops!
The MBP fits but you will have to use some force to insert/remove it! While the tolerances are tight, I found the already narrow width of the “arms” of the holder narrow enough to be frightening! For my desk, I wanted this to fit neatly within 30mm: the width of the space under the edge of the sides of my desk. If you have more space, consider widening the model 2-4mm and perhaps add 1mm vertically. This will get you a slightly looser fit.
To be honest, though, I rather like the tight fit! It keeps the laptop firmly in place while manipulating the USB-C ports.
If you need access to the other ports on that side of the laptop… well… you're going to need to tweak the model.
I printed on:
MK3S+
0.8mm nozzle
0.4mm layer height
30% infill (we don't want this thing warping when loaded!)
I'm sure that smaller nozzles will work but, oh my, the longer print time!
The author marked this model as their own original creation.