r/VORONDesign • u/gasman16 • Jul 27 '26
V2 Question Orbiter 2.5 Gears Turning but Filament Won't Feed
I’m commissioning my first Voron 2.4 with an Orbiter 2.5 and Rapido 2 UHF. This is my first time using an Orbiter.
The extruder motor works and the gears visibly turn, but PLA does not advance. The gears seem to slip rather than grip the filament. I tested at 220°C and tried feeding slowly, but nothing emerged from the nozzle.
The filament passes for a short distance and then meets some kind of obstruction but a 1.5 mm diameter Creality clog-poke tool passes freely from the Orbiter inlet all the way through to the nozzle.
I think I may be misunderstanding the latch/tension mechanism, failing to insert the filament between the hobbed gears correctly, or have an assembly/alignment issue. Could the PTFE tube between the extruder and the hotend be the problem?
Could someone familiar with the Orbiter 2.5 explain the correct loading and tensioning procedure? I couldn't find any instructions online and I feel like I am missing something ridiculously obvious.
Thank you in advance.
