Tevo Tarantula Inverted Dual Z Axis

Add the second Z axis to provide better support. "Invert" the motors (i.e. put them at the base) to improve stability. I worried that having 2 motors at the top will cause more vibration during printing.

The design is modified from "Tevo Tarantula Brackets" by thingirob (https://www.thingiverse.com/thing:1457449). You can use the centre base and Y base in the original design, but I created another upgrade "TEVO Tarantula Double Y axis rails" (https://www.thingiverse.com/thing:3193014).

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