On the filament there is a knot and then the electric wire is detached
I was printing with the filament bought on the original prusa shop, at a certain moment a knot was created when I was not near the 3d printer, when I came back I found what you see in the picture.
The filament did not flow, the reel holder came near the motor, hit the printing plane that moved the piece, so the curls were created.
The impact has led to the detachment of the wire, this under the printing plan, you have a picture that shows where it should be positioned, with what can I block it? Glue or adhesive tape?
Do you have any suggestions to prevent nodes from forming on the filament?
Re: On the filament there is a knot and then the electric wire is detached
Top picture is just your bed thermistor wire. You need to remove the bed and you will see some yellow kapton tape where it slipped out of. You can, USUALLY, just slide it back in and push the tape back down. You may need to get some more tape though. Check the thermistor wire to see if it has migrated back into the brain box.
It seems you got a snag/ crossover in your filament. Looks like, from the pics, the end of the dark filament got under a lower layer of the itself. Kinda half hitched itself. Good news is, at least up to that point, you now know that the dark filament extruder was working right. It managed to drag and lift the weight of your spool holder and filament.
The knot may have happened when you were moving the filament around and the end slipped under a section of itself. It may have ran fine until the loose part finally hit an area where the rest of the filament was well seated and that was enough to let it tighten on itself.
Hope that helps,
Neal
Re: On the filament there is a knot and then the electric wire is detached
Thanks for the reply.
It happened as you described, an upper filament went under the lower filament.
The problem is that this situation is not predictable? Is it possible that there is not a solution to this problem?
Now I have the MKS2 version ... with the MKS2.5 update with the new wire sensor, besides the presence of the filament, can also know if it is moving?
Re: On the filament there is a knot and then the electric wire is detached
The problem is that this situation is not predictable? Is it possible that there is not a solution to this problem?
When handling the filament, swapping to another reel and so. NEVER EVER let go of the of the filament, it will create this problem.
Use something like these to secure the filament end to the spool when storing it.
https://www.thingiverse.com/thing:2255583
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Gert
Re: On the filament there is a knot and then the electric wire is detached
In this case I don't think the best and most accurate filament sensors on the planet would have helped until it was too late. As your pics show the filament kept moving so as far as the sensor would be concerned all was well right until the it crashed into the machine and then its too late. Maybe something that would detect over a certain amount of drag or load on the extruder motor would work. How to make it real I don't have the knowledge.
Use them little holes on the side of your spool. Keep that filament in there until you have everything else set up and are ready to load it. The absolutely last thing you should do prior to trimming and loading the filament is take it out of those spool holes.
And the very first thing you should do when the filament unloads is poke it back into the spool holes.
Like you I am learning as I go and am pretty new at this so I am setting up my "habits" to include the "Mustest firstest " before starting a print and the same for when a print completes.
Good luck and never stop learning or trying. And always remember that you learn the most from things that go wrong.
Neal