having an issue with loading / feeding filament to the aux nozzle, using an external spool.When trying to pull in / load the filament, it moves extremely slowly, only for 1-2 inches at a time, before I have to manually continue to feed by hitting “retry”. taking several minutes to fully load.
I’ve only tightened and loosened both the screws holding the PTFE Tubes, just in case they are too tight. Opened up the aux extruder, but everything seems to be in order. All the screws are tightned, no jams, no filament stuck anywhere. Also, actually pulling back / unloading the filament seems to happen at the regular speed. It’s just loading the filament that’s causing issues.
I went through a similar situation as you. What fixed it for me was removing and then reattaching the auxiliary PTFE tube at the toolhead. I had assumed it would be perfectly inserted out of the box, but apparently not. Everything is working better now, and I am hoping that this indeed would keep it working smoothly. For now though an easy fix you could try (and let me know if it works out for you).
Did you get this sorted?? Mine has started doing the exact same thing. Put a roll of filament onto teh external spool, push it in as far as you need to, hit the load button and it only seems to push it a few inches past that feed mechanism on the back. Keep hitting retry and it pushes it about half an inch forward … will take all week to get it to the toolhead!!! Still a good 6 inches short of the toolhead after pressing retry a dozen times. I have replaced all the PTFE tubes. I ran a piece of filament through all of them to check for blockages - there were none. Printed clips that people use to reduce bends etc - still does it. I am out of ideas . Was printing fine for weeks and now this. Second nozzle is now useless.
@Dread73 have you tried my solution (the comment above yours)? That is, ensuring that at the toolhead the PTFE is as flush as possible before tightening the nut?
EDIT: I reread your comment and you said that you don’t think it’ll reach the toolhead. Which seems to indicate your problem is happening earlier (the extruder most likely). You could check if there’s a probelm at the extruder by following the guide in the X2D wiki. I followed it and was even able to disassemble the extruder and clean it that way.
Hi @redtani - yeah, one of the first things I did was remove all the PTFE and reseat them all firmly.
Funnily enough, last two prints seems to maybe have resolved the issue … I am about to swap put that external PETG roll for PLA so I’ll do a unload and laod of the new one, see if it occurs
Let me know how you get on! I’ve just purchased a third X2D and the new one is giving me the exact problem you are all experiencing. I print mostly in Asa but it’s a pain in the ■■■■ when I want to do a PETG print with PLA on the external.
Assuming things have resolved now, hopefully. Could it have been the PTFE being loosely seated on the toolhead? In my case I have isolated the problem to this (but I’m sure there are many ways it could be failing for others).
I just finished tinkering with the X2D, and I FINALLY managed to solve the issue. Apparently the spring inside the casing for the Filament Cutter was positioned incorrectly. When I saw the corresponding Troubleshoot Picture, I noticed that the little Lever inside pushed back once the filament was pulled out, whereas the Lever in my device didn’t.
I opened it up again, and positioned the spring in such a way that the lever bounces back again. After putting everything back together, the Filament is finally loading quickly again! Because the Lever didn’t move, it permanently signaled to the printer that there already is Filament in the toolhead, which is why it moved so slowly.
Here is the part with the spring installed INCORRECTLY:
As you can see, the spring is behind the lever, towards the opening - not towards the inner casing.
I realized that there was something wrong during the troubleshoot, because the printer displayed the Aux Nozzle as “loaded” even though it was empty. You can see that the red line indicating the filament is still in the toolhead.
