Box with sliding lid

Box with sliding lid, made to store a Razer Basilisk Ultimate so internal capacity is 78*x140x44 (mm, x-y-z) 78* because it's chamfered at the top as seen in the last image.

Tolerances are tight but with my profile on the BBL A1 it came out good and slides with a satisfying resistance, the box is meant to be perfectly flush on all faces and forms a perfect rectangular box