[Remix/Mod] Coolatron V2, fanduct for Tevo Tarantula using 50x50x15 Blower

This is a modification of paul0's Coolatron fanduct.

I printed the original, but noticed the airflow was inadequate. So I spent an hour further hollowing it out in tinkercad. This version seems to have at least double the airflow when compared side by side.