Customizable Sanding Stick

I've created this OpenSCAD, where you can customize your sanding stick. Even the needed screws are printable. You only need some sandpaper (sheet or strip) and the 4 printed parts.

I've also added the four sticks I'm using in the first picture, as .stl files.

Customizable Settings
- set the length, height and width (picture 3)
- 3 different end styles: none, round and wedge (picture 4)
- set the angle and a smooth round end for wedge style

Customizable Sanding Stick on YouTube
RCLifeOn: https://www.youtube.com/watch?v=eK8k_6zu0hs
Print 3D Channel: https://www.youtube.com/watch?v=kY7AoZirRsI

Changelog
v1.3 - 2017-08-08:

[feature] parts will be generated in separate stl-Files additionally.
v1.2 - 2017-07-31:

[fix] reduced the tolerance of the threaded hole. If you have problems, to insert the screw in, you can change the tolerance in the screw-settings-advanced section -> Screw Thread Hole Dia In Millimeter.
[feature] parameter to add extra height of the scre