Treadmill Kleenex Mount

*Updated 2024/02/27*:
- Added "v3.1" updated hangers with "overhang" piece to grab onto railing more securely - use this with PETG for it to be flexible enough to put on the treadmill, and optionally disable these with the variable at the top of the scad file
- Increased the size of the retention clip to fit more securely

*Updated 2023/12/19*:
- Added updated .scad file and "v3" STL files.
- Thins the walls a bit and adds a cutout to reduce material needed and print time.
- Fixes the hanger holes on one side of the box to be the correct orientation.
- Adds "retention clip" to the opening to keep the tissue box from falling out due to vibrations

I didn't have a good place to keep a small box of tissues near where I bike indoors and run on the treadmill, this is a design that can be printed without supports or screws needed to attach a box to the arm of a treadmill. It's currently fit to a Technogym MyRUN, but the OpenSCAD file is included so you can adjust the size/depth of