An easy to use, lightweight, swappable cooling duct system with different attachments. Once the top latch is mounted below the radial fan, it is very easy to swap out different attachments by sliding them on and off from the top part.

When printing, use supports only touching the build plate. The single ducts require supports only at the base to support the bridge. You dont have to use supports inside them.

I printed the parts out of PLA and went through a lot of iterations when designing them. When I was printing improved versions of the models as I was going along, I was using the old versions that I printed before to cool the new parts. None of the ones I used exhibited any melting or warping due to the heat from the nozzle. Also bearing in mind there is cool air always traveling through the ducts, there shouldnt be any problems using PLA. Like always though, if you prefer to be on the safe side, please use PETG or ABS.

The bottom of the dual ducts can become rough because of the supports, but is easily fixable by using a file or some sand paper.