Backpack Part Cooler for FT-5

This is a part cooler for the Folgertech FT-5 R2 (reportedly does NOT work with R1). It mounts the blower behind the X axis belt and closer to the central axis of the X rail, which minimizes the mass hanging below the X rail and as a result, minimizes the wobble during rapid Y movements. The entire part weighs just 32 grams, and the wall thickness is designed at 0.75mm, which prints fine and is plenty sturdy even in PLA. The airflow has been directed internally by turning vanes in order to achieve a relatively even air output around the ~270 degree air outlet. Also, the air outlet is positioned as close as is reasonably possible to the nozzle, for effective cooling on small parts.

The blower mount attaches to the stock backplate of the carriage via the two lower screws. The stock nylock nuts are removed, the part cooler is put in place, and the screws fasten to the part cooler instead of the nuts. M3 drop-in T-nuts are used inside of the part cooler in order to create a stron