Customizable Conformal Rail Guides

Customizable conformal rail guides. Couple of STL files are included. More sizes and options can be easily generated from included source file for OpenSCAD.

Note: For some reason preview in OpenSCAD doesn't render properly. Hit "render" button instead of "preview", and it'll display correctly.

The generator supports:
* Any tube size or rail size; with handy presets for common rail sizes.
* Change any dimension of the rail guide such as length, width, height, tab width, etc.
* Regular rail guides, and rail guides with custom standoffs.
* Option for a slot through the middle or solid.
* Option to add holes for mounting screws.

If adding screws, generate supports so the holes will be close to round; they are generated with relatively small tolerances. Clean support material from the holes, then run a drill bit with a hand through it to finish cleaning it off. The screw should slide freely through the hole. Few twists of countersink hand tool are recommended if you have one w