External buffer for Mosaic Palette 2

This is an external filament buffer to be used with the Mosaic Palette 2 and Palette 2 Pro.

IMPORTANT! Version 7.0.6 of the Palette 2 firmware introduced jam and run-out detection that makes it incompatible with the buffer since it will trigger false errors that will make the Palette cancel the print. When I told them about this, they was nice enough to add an option for disabling this feature in version 7.2.6. Look at the bottom of the description for instructions on how to do this.

The internal buffer in the Palette 2 multi material splicer is way to small to fully utilize the splicing capability of the machine. And due to other unfortunate design decisions made for the entire buffer system the machine can not even fully utilize the tiny buffer that it have.

Most objects have an uneven division between the up to four materials being used per layer, and then it is important that the buffer is big enough to average out the load on the splicer over the whole layer. Something th