Hello everyone - I just recently bought a Prusa i3 V2 from the RepRapGuru online store and completed the mechanical assembly without any major issues so far. I have several extra parts: 2 metal springs, one 125mm threaded rod and two acrylic pieces. I'm assuming that the acrylic pieces are for a spool holder? If so, how does the spool holder attach to the frame? I would appreciate it If anyoneby mfmellone - Prusa i3 and variants