This is a threaded bobbin for the Dreaming Robots Electric Eel Wheel Nano. It's designed to be printed without supports, though I do use a raft for the tubes (to make sure the ends aren't too squished on the bed).
I sell these and a few other bobbins on my website: Snortimer's Hub
Printer Brand:
LulzBot
Printer:
TAZ 5
Rafts:
Yes
Supports:
No
Resolution:
0.2mm
Infill:
15-20%
Notes:
No supports, raft only for tubes, print one tube and two end caps per bobbin.