Models
Shaft 3D Printable Models. Makeshape.co have 4 Shaft 3D Printable Models.
AnkerMake M5 Spool Guide
Printables
Slick
Free
RC Car Mod 1 Standard Motor Pinion Collection, for 3.175mm motor shafts, M3 and M4 grub screws
Youmagine
Dlb5
$5.50
6mm hub
Makerworld
Idktbh
Free
Heater Knob 7mm
Makerworld
Gravitonus
Free