I seem to be having trouble printing a parts cooler duct. Ive tried a few different ones from thingiverse on my prisa mini in petg, but they either broke on assembly, or didnt fit. 
Anyone done a reprint of their part cooling fans and have suggestions for successful designs?
I have no experience with the CR10 duct but I have been using ASA for them. It stands up to higher temps better. With the Artillery Reality changed the duct design with each version 1-4 and there seems to be a mid version change too. It is crazy frustrating.
I did manage to succeed in printing a new fan shroud, and a few spares.