Spooljoin - Can't retract old filament?
Using an MMU3 and a MK4.
I was using the spooljoin feature for the first time with an old spool of filament and a new one. The FINDA successfully detected that the old filament ran out, but when trying to purge the old filament it seems as if it can't retract it. I tested it again and neither times was it able to do so. What do I need to tweak to ensure it can still grip the old filament? Do I need to adjust the FINDA sensor, or increase tension in the idler?
RE: Spooljoin - Can't retract old filament?
I face the same problem. I tried playing with the tension screws, but so far with no luck. Spooljoin doesn't work for me.
When not using Spooljoin, it prompts me to remove the filament from the MMU front and the MMU moved to another slot, which means it wanted to retract the filament back in the MMU to eject it, but it is still in the hotend and nothing in the MMU.
It seems one it detects the filament ran out, it cannot grab it anymore, which is strange, because the extruder should be able to push it back to the point the MMU can grab it.
Anyone has an idea to that? Apart from the tension screw, there's not much to tweak, isn't it?