2 Tool XL - Nozzle Cleaning Failed / trouble loading filament
After several successful prints, I started getting a "Nozzle Cleaning Failed" message. At first I could fix it by unloading and reloading the filament, or purging the filament several times until filament started to come out. But now I can't load filament at all. All I get are clicking sounds.
How to I open the tool head to inspect/adjust it? It's hard to believe the nozzle is jammed already.
Tool head #2 works fine.
I am printing with the original roll of prusament PLA that came with the printer.
RE: 2 Tool XL - Nozzle Cleaning Failed / trouble loading filament
Front of Nextruder involved you will see at the top a cam latch that can be pushed up to release the entire front cover of the Nextruder.
RE: 2 Tool XL - Nozzle Cleaning Failed / trouble loading filament
Had this problem today several times. The reason seemed that a little blob of filament was at the nozzle tip. After cleaning the nozzle, the problem was gone.
RE: 2 Tool XL - Nozzle Cleaning Failed / trouble loading filament
Thanks for that. I opened the front and there's a small piece of filament jammed in there. I tried unloading it, but it wouldn't come out. So I pulled with some tweezers and got some of it out. But now there is a small piece jammed too low for me to reach. It won't unload, and I can't load new filament to push it through. Now I guess I need to figure out how to disassemble the tool head?
RE: 2 Tool XL - Nozzle Cleaning Failed / trouble loading filament
When I encountered this problem I moved the head to the front and Tuned the Nextruder temperature to the filament type, fished out as much old filament as I could, then fed the spooled filament past the toothed wheel. Closed and latched the Nextruder gate. Then selected Load from the menu and have the spooled filament and bit of a gentle push as the filament fed into the hot end. That solved my issue.
RE: 2 Tool XL - Nozzle Cleaning Failed / trouble loading filament
I've tried that a few times, but the extruder just makes a clicking noise. It's jammed. I need to open it and clear it out. It'd be nice Prusa tech support would chime in and tell me how to do that.
RE: 2 Tool XL - Nozzle Cleaning Failed / trouble loading filament
I had the same issue yesterday. A small debris of filament was the problem. Have a close look at the bottom of the extruder gear after you opened the front extruder latch. As I was not sure if the nozzle or the extruder caused the problem, I changed/swapped the nozzle first. The problem was still there. So it was the extruder. Then I noticed the small filament debris. After removal, everything was OK again and I could print without further problems.
RE: 2 Tool XL - Nozzle Cleaning Failed / trouble loading filament
The debris is unreachable from the front. When I try to fish an acupuncture needle through and down into the nozzle, it's jammed. On the other extruder, it makes it through.
RE: 2 Tool XL - Nozzle Cleaning Failed / trouble loading filament
This YouTube might give you an idea of what to do next.
RE: 2 Tool XL - Nozzle Cleaning Failed / trouble loading filament
Thanks for that. Success, with one caveat.
As you can see in the pic, there was a piece of filament jammed in the tube. I took that out and then tried to reassemble, but I could not get the nozzle back in. It just wouldn't thread in without me applying WAY too much pressure.
So instead, I installed the supplied nextruder adapter, which went in fine. Then I installed a spare 0.6mm nozzle from my mk3s. It was a fully brass nozzle and I think it was a little tougher and was able to cut the threads in.
So now I am wondering, what's the advantage to using the supplied longer nozzles? It seems WAY easier to replace a mk3s style nozzle and they're super cheap.
I am currently printing a test model and everything is smooth.
RE: 2 Tool XL - Nozzle Cleaning Failed / trouble loading filament
So now I am wondering, what's the advantage to using the supplied longer nozzles? It seems WAY easier to replace a mk3s style nozzle and they're super cheap.
When using the adapter you must tighten it while hot or else you risk a leaky hotend and/or a loose nozzle which provides a perfect environment for "The Blob of Death". With the one piece nozzle design, this is a non-issue.
RE: 2 Tool XL - Nozzle Cleaning Failed / trouble loading filament
Well, I retightened the nozzle after heating it up and got maybe a 1/16th of a turn more. I'll keep an eye out for leaks. I guess I can retry inserting the original nozzle now that my brass nozzle has hopefully loosened up the threads.