Customizable Screwdriver Stand

Customizable screwdriver stand with box outline. Supports:
* Variable height, diameter, columns and rows
* Text banner
* Variable height and hole spacing
* Beveled holes

The default parameters are perfect for the Wiha 26199 Slotted and Phillips Screwdriver Set.

Also works well for pens, whiteboard markers, and various tools.

You can edit the parameters in Customizer (http://www.thingiverse.com/apps/customizer/run?thing_id=1434129) or using OpenSCAD.

Inspired by "Customizable Screwdriver Holder" by Kjell Kernen (http://www.thingiverse.com/apps/customizer/run?thing_id=1044733).