Blower Fan Duct for Wanhao, Flashforge, CTC etc

This is a rehash of Alessandro's http://www.thingiverse.com/thing:795992 Wanhao Duplicator 4/4x Filament Fan Duct. When I printed his version I found the part pushed against the belt. I also decided to make some changes so the parts could be printed without supports.

Lightly sand the parts where they will be glued together.

Print using ABS and not PLA. This is helpful for two reasons. One, the heat of the nozzle will melt the lower portion closest to the heat source and Two, use ABS Juice