Print the LED cover to soften and diffuse the NeoPixel ring. For most FDM 3D printers, PLA material works with out a heated bed. The extruder should be set to 230c. The model was design to print with a raft or any supports. Below is a small list of places to get PLA. Make sure your filaments diameter size matches your 3d printer. Most common size is 1.75mm and 3mm.
Circuit diagram and full tutorial available on learn.adafruit.com/