Tobacco Tin Insert (updated to v08 + OpenSCAD)

This is my first attempt at using Onshape so be gentle. Actually, any and all criticism is welcomed so that I can improve. The first design seemed a little 'clunky; to me so I redid it from the ground up.

Basic idea is that the top section is to hold a cigarette roller, the middle for papers/filters and the bottom for the tobacco. The roller's a pretty snug fit, hence no base in v02.

*UPDATE*
Well, it turns out that not all tins are created equal and v02 was having difficulty in fitting i