Anycubic i3 Mega drag chain holder

This design is meant to use with the cable chain printable from [Thingiverse: 2803544](https://www.thingiverse.com/thing:2803544) by [pablogk95](https://www.thingiverse.com/pablogk95/about), but we found that the original design from this drag chain holder are more minimal, plus we already mounted our extruder to the top left of the machine using the mount from [Thingiverse: 2448418](https://www.thingiverse.com/thing:2448418) by [Alpharic](https://www.thingiverse.com/Alpharic/about).

This is