I found my laptop was getting a bit hot while working so I designed these practical legs to sit it off the table to give better air flow. There are some spaces, where the screws go into on my laptop, that the legs sit in to so it didn't slide off. The dimensions are (x)60x(y)25x(z)50mm. I made it at 0.3mm layer height, with 50% infill. it took a while to make but works well. .stl and .dwg file included.