FAN FOR PISA (Plastic Interlocking Spool Array)

PISA stands for "Plastic Interlooking Spool Array", a tower to hold filament spools.inspired by the well-known Italian tower, this modular system allows to solve our common problem of serial and compulsive accumulation of filament spools :-)this upgrade allows to install in the base, a common 120mm PC fan so as to circulate air through the tower of spools, from the top (warmer and drier air) to the bottom, in order to keep them dry.the main project is available here: https://makerworld.c