Gen7 Pololu Fan Duct

There are quite a few fan ducts on thingiverse, but I didn't find any for a Gen7/Sanguinololu style row of pololu drivers. So here's mine. It is sized for a 60mm fan. I'm working on an 80 mm version in case I need more oomph. (I naively bought 2A steppers before realizing that the pololu's won't do anywhere near that without serious cooling.)

The aerodynamics of this duct are very poor. I'll try a more curvy version when I get around to it.