Ender 3 Sidemount Spool Holder

Loved Adrenaline's design of the side mount spool holder but for my application I couldn't get it to fit in solidly enough in the channels to be stable so I redesigned it to accept some socket head screws and channel nuts. 

Required: M3 x 3mm socket cap screw with channel nuts. 

The tolerances are pretty tight, you may have to push the screws in.