Models
40mm Fan 3D Printable Models. Makeshape.co have 2 40mm Fan 3D Printable Models.
ETB Industrial building 5″ tall floor sample from Damocles KS
Cults3d
Alario
Free
Ender 3 Raspberry Pi 2/3 mount (UPDATED V2)
Thingiverse
Giacomo30196
Free