OpenCore

This is an open "core" implementation derived from Core System Frame Wall models in the [50/50 Core 2.0 Developer Kit](https://github.com/5050frames/core-frame-system) targeting 100% compatibility with the system.

These models make it possible to create and share Core 2.0-compatible designs made in software using boolean operations which would not be permitted under the Core Frame System 2.0 Core [CC BY-NC-ND 4.0 license](http://creativecommons.org/licenses/by-nc-nd/4.0/).

In the US, this part can also be produced by machining and spot welding EMS #20-63-240 6063-T52 aluminum rectangular tubing, although [purchasing the core through 50/50](https://5050frames.com/) is almost certainly an easier, more cost effective option.