Fail to load filament

Bambu Lab X1 Series General discussions
1

every time I try to load a filament the machine just go back , I clean the nozzle, extruder ect, take apart everything and nothing, when the material go inside the extruder just go back again and again

2

Error message/code? Multi AMS Yes/No? If AMS did you try to load manually from the external spool?

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3

Welcome back to the forums.

By “clean the nozzle” you mean unclogged it/cold pull, right?

4

There are other possible root causes. Binding/trapped filament (check spool), snagging in the PTFE path (check PTFE ends), buffer spring trapped, buffer magnet flipped (although this usually triggers a wrong warning), stringed debris in the filament sensor on the print head or a faulty print head filament sensor all come to mind beside clogs and a stuck cutter blade.

A good starting point is to check how far the filament actually travels (both the real filament and the visual representation on the device screen of Studio).

That will help to narrow down the issue(s).

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5

I clean the nozzel out side the mache, I heat a neadle ect… is full open :frowning:

6

I check every path ( tubes) every time the material goes to the end ( nozzle ) just in the moment ready to get inside the hot end just stop and go back, the filament go all way in and just go back over and over, if I try to load the material keep doing the same over and over, I move the ole system to my other machine ( I have 2 ) works fine, go all inside and melt fine , I clean everything, I check the clog( nozzle ) pushing material hot and is fine, is just stop in the door right there in the nozzle and go back over and over

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7

well I use the ams no warning sing jet , is just go inside the machine almost inside the nozzle ( after the yellow gear you know) inside, I tested in my other x1c and go inside and melt fine , because I see it in the tip of the nozzle and is fine , but when I move all back to the original machine is just do the same, try to go all in but stop in the housing gear ( go all in, even after the sensor and is fine )

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8

Is that from the AMS? In that case, feeding it from the rear spool instead can give you a much better feel to narrow down the issue further. (“All the way in” is a bit relative.)

  • If the filament gets to the junction between PTFE and print head, you may need to re-cut the PTFE end, push it in fully and flush again and/or maybe remove any stabilizer mods you have there.

  • If it goes past the filament sensor but that is not triggered, your sensor is most likely damaged. If it is triggered but the filament is not in the path, there’s probably some minor string debris at that location.

  • If it gets to the top of the extruder gear but the extruder doesn’t grip it when activated from the front panel, you’ll need to open up the extruder and clean it. Some extruder clogs can be really stuck. Especially after heat creep.

  • If it gets past the extruder but not into the cold end (top part of hot end), check you filament cutter (but that is really easy to see).

  • If it gets stuck in the hot end, do at least a couple of hot hex wrench cold pulls as using the needle usually just pushes the gunk up.

There are of course further possible causes. But these are some of the most common things you can better diagnose when feeding filament manually from the rear spool.

Edit: Addendum: It may help if you mark exactly where the filament stops when feeding manually using a pic of your print head with the front cover off.

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9

ok am goin to check all that well, I move the hole system to my second machine and works fine , just runs normal ,and when I set back the hole thing (back to the machine with the problem) the machine do it again. am going to check all your points :saluting_face:

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