I went ahead and made a video briefly showing off my printer I built. I made a false claim saying that there was no other 32 bit board that was as easy to use that support dual extrusion. That claim is wrong, I completely forgot that the smoothie board exists. The reason I like the azteeg better though is that its smaller and much easier to hide away. Other than that, they are more or less the same board with a few features missing here and there.
very nice printer :), Excellent job.
There are ways around a dual fan set up btw, if you don’t mind using someone else’s parametric design, then there’s something like http://www.thingiverse.com/thing:217253 which is parametric SCAD. This is what I have on the FB2020s.
Duet & Replicape are both 32 bit and support two extruders. I have no experience with those though. I like smoothieware.