I wanted to get the filament holder of the top of my Sidewinder X1.
To hold the filament spools i use 12mm aluminium tubes sitting in my side holders for convenient Access from the top.
The inside guide plate has holes for M3 heat set inserts *link*, the outside is recessed for m3 cylinder bolts *link*.
Press in connector G1/8" x 4mm *link*
4mm PTFE Teflon Tube 2m *link*
The author hasn't provided the model origin yet.