Filament mixer for D-bot

I was very excited when I first saw techwit's filament mixer, and wanted to try one on my D-bot printer. I took techwit's design and mixed it with the cable harness holder for the D-bot, and here's the result. So far, I've bolted the two parts together, mounted the bowden tube holders, and manually pushed some filament through it. Next step: get it mounted on the D-bot and start learning how to use it!

For D-bot/C-bot users, this piece bolts on the x carriage in place of the cable holder. I r