Extruder Fan Duct for Replicator 1 / Duplicator 4 / FlashForge

Extruder Fan Duct for Replicator 1 / Duplicator 4 / FlashForge / CTC

This is a remix of thing:537918

Thanks thruit00!

FINAL UPDATE: I've submitted a few final changes to v3 and I'm also publishing the cleaned up source SketchUp file for you to mix and edit. I likely won't be making any other changes since these are lasting over a year before any noticeable sagging, etc.

Goal:
I really like the Active Cooling Fan Duct v2 and used it for quite a while (about 600 hours) but it would s