Easy Customizable Spool Drawer

I have too many empty spools laying around from all kinds of different manufacturers. They're all different sizes and I found keynes87's openscad file but it wasn't quite what I wanted.

Using that file as a template, I added some variables and made it work for me. I've added comments to each variable to indicate what measurement to input.

Inner - The RADIUS of the center of the spool in MM
Outer - The RADIUS of the outside of the spool in MM
Thick - Wall thickness in MM - I used 2 mm
Height - Height (inside to inside) of the spool in MM (when laying flat)
Central_Angle - How much of the spool in degrees the drawer will cover - 180 for 2 drawers, 90 for 4 and 45 for 8
Screw_Size - DIAMETER of the screw hole in MM
Screw_Wall - This is a little trickier, but it is the size of the circle around the screw. It needs to be larger than the screw_size. I found that a smaller value here (in MM) made for a slightly quicker render and print time. However, it also moves the pivot point