Original Ultimaker 2+ Fan shroud

thingiverse

Another update 08-08-2016. I was tipped off by someone at Ultimaker about this model: https://www.youmagine.com/designs/um2-dual-fan-shroud . The airflow of this design has been proven through computer simulation. The original UM2+ fan shroud design is made to be folded with steel sheeting, but the model on this youmagine link is significantly better for 3D printing. Update 03-08-2016: Use the _fatter.stl file instead of the original model, which was designed for steel sheeting. This thin material doesn't work well for 3D printing. The _fatter file is thicker and stronger, making the entire thing much more robust! All rights to this model belong to Ultimaker. I simply converted their STEP file from their Github page without any modifications. Use a brim and full support structure when printing this model, and choose a sturdy material as possible. My PLA print was a bit fragile, but it looks great!