Parametric box with sliding lid

This is a parametric box with sliding lid. The lid includes a slide lock and ridges to help your fingers find enough friction to slide the lid past the slide lock.

*note*: The lid is upside down in the OpenSCAD file for print orientation purposes - print it that way and flip it right-side up to slide onto the box.

I recommend printing at 100 micron layer thickness or better because of the way the lid slides onto the box - at higher layer thicknesses, the lid splines and box tracks may need to be scaled up or the gaps between the splines and tracks will need to be increased because of how the higher layer thickness distorts the splines and tracks.

__Still a work in progress__
I've only printed at a couple of different sizes and wall thicknesses and I'm still playing with the lid locking and sliding helper features.