Hex Shank Bit Holder - Parametric

Hex Shank Bits Holder
=====================

This is a remix of the hex bit holder by TBRIshtar :
http://www.thingiverse.com/thing:241501 - thanks TBRIshtar!

**Update 2018/05/07** Added new options under the advanced menu to:
* Modify the spacing between row and column holes
* Select between hex or round holes
* Set the amount of space from the hole edges to the holder edges - can be set individually for row and column edges which allows for either or both side holes to be cut "open" on the edges.
* Set the hole diameter
* Set the corner fillet radius

**Update 2017/10/31** This thing is now customizable using the Thingiverse customizer.

This remix mimics the original as close as possible but has the following
features:
- Almost fully parametric
- Any number of rows and columns, still keeping the edge rows open on the
sides. This is nice if the hex shank has the bit size stamped on it.
- Footer height can be adjusted
- Wall height can be adjust