I recently bought an AD5M and printed the enclosure. Because I don't know what all is in the dyes, stabilizers, etc. of the PLA I use, I modified one of the risers to have a 4" hose outlet. I use dryer duct and a duct fan (sold on Amazon for grow tents) to funnel exhaust through a crack in my sliding porch door. The fan seems to draw in enough cool air through gaps in the enclosure to avoid the usual problems with printing PLA in an enclosure.

Now I don't have that faint hot plastic smell in my apartment!

I used this [modified spool holder] to adjust the filament break sensor and maintain the back-mounted spool.