Customizeable Speaker Bar Grill Version 2

This is a new version of my previous Customizable Speaker Bar Grill. https://www.thingiverse.com/thing:7049220

This version is more user-friendly and consolidated into a single OpenSCAD file. It is compatible with the Thingiverse Customizer (although it did not function reliably during testing). In my opinion, the best experience is to download the included OpenSCAD file and customize it directly.

You can download OpenSCAD from here: https://openscad.org/

*** FEATURES ***
-- Selectable speaker sizes for 5.25, 6.5, 6.75, 8, 10, 12, 15-inch speakers
-- Rail span to select how much coverage you want
-- Selectable number of bars
-- Automatically splits larger speaker grills into four parts for printing. Includes a spline key to align the parts. The bars have lap joints.
-- Height modes for small excursion and large excursion speakers, also user-custom height setting.
-- Resolution selector to make prints smoother
-- 3 Screw holes for small speakers #6/4mm and 4 screw holes for lar