Yet another parametric stackable box (OpenSCAD)

# Parametric Stackable Box

The design is a blatant rip-off of the famous [Stackable Box](https://www.thingiverse.com/thing:647425).

Pros:
- It's parametric! (written in OpenSCAD)
- Ticker 1.6 mm wall to improve stackability.

Cons:
- Few fancy variants/accessories. (WIP)

## Changelog
### v1.2.0
Add some variants
- add variant-tall
- add util-battery-organizer
- add util-generic-organizer-2x2

### v1.1.0
Improve stability & printability
- Increase the wall tickness to 1.6 m