The gap for laptop is 16mm, which will fit most of the modern non-gaming laptops

Optionally but recommended for nice finish is M3 bolts to tight the bar. Ideally - with allen key head. But bars can also be glued in

Designed to be printed without supports. Side parts - by placing “nocomake” label at the pottom. Bolt holes have champher so will print fine without support in this orientation. 

Version shown printed is 80°.