Desk Stand / Desk Riser

I made this desk stand / riser to put my laptop up out of the way while I work on electronics. I added the holes to certain pieces to let the computer vents breathe. 2 sides and the center was capable of holding my laptop, but I ended up using a center with support to make it sturdier and a bit longer for my use. I printed the final product in PETG, but I did my initial test piece in PLA. The PLA seems pretty sturdy and if I wanted to do it all over again, would likely try it in PLA. These prints took a long time. About 2 days on my Ender 3 S1 for anything with a support leg. The test piece can be used as an extension. The pieces with the vent holes were made from the original design, so I no longer have those pieces without the vent holes. This is my first posted design and I am not sure what all to include here. My first run on one of the sides split at the corner, so I've updated it with fillets and the next side printed fine. I was considering gluing the pieces together, but they s