Interchangeable Dual Blower/Radial Fan Duct (Tevo Tarantula)

An interchangeable fan duct for Tevo Tarantula. It's based on "Dual Blower/Radial Fan Duct Mount" https://www.thingiverse.com/thing:1850163

Print everything upside down and mirror the left duct to get the right duct.

To get optimal results, different types of prints require different ducts (Desi Quintans' http://www.desiquintans.com/coolingtests2, http://www.desiquintans.com/coolingtests). Wider ducts are better at preventing warping while narrow ones are better for small parts , overhangs, bridge. This design allows you to easily swap out ducts with slide & snap or use a combination of wide and narrow ducts as suggested in the experiments.

How to design your own
Simple!! Just redraw the spline curves in the attached "duct_only.f3d." (modify sketches named "curves_standard" and "opening_standard." See https://youtu.be/ctuSp7M95Bo)

If you design an awesome duct or a cool remix for a sensor, let me know and I'll post links to your things here!

See https://www.thingiverse.com/thing:1850163 for printing tips.

The design snug-fits this blower fan:
https://www.amazon.com/gp/product/B00MJU6JR2/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1