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Gik
 Gik
(@gik)
Eminent Member
RE: Xl extruder stops

Guys please...this isn't meant to be an attack, but don't mix up the problems here in the thread.

This thread covers the extruder failure problem.
No filament feed, grip or clog problem. Other problems such as the alignment or assembly of various components should also not be included here either. This disrupts the course of the called problem and the attempts to solve the actual problem here.
The extruder failure is a characteristic clear problem that causes the extruder motor to stop from a certain point until the end or termination of printing. This has nothing to do with the idler lever not pressing the filament against the conveyor wheel hard enough.

As I said, this is not an attack against anyone. For other problems, please open your own thread in the relevant subcategory in the forum or write to a suitable existing thread.

Thanks!

Posted : 11/01/2025 9:17 am
Brian
(@brian-12)
Prominent Member
RE:

 

Posted by: @gik

Guys please...this isn't meant to be an attack, but don't mix up the problems here in the thread.

This thread covers the extruder failure problem.
No filament feed, grip or clog problem. Other problems such as the alignment or assembly of various components should also not be included here either. This disrupts the course of the called problem and the attempts to solve the actual problem here.
The extruder failure is a characteristic clear problem that causes the extruder motor to stop from a certain point until the end or termination of printing. This has nothing to do with the idler lever not pressing the filament against the conveyor wheel hard enough.

As I said, this is not an attack against anyone. For other problems, please open your own thread in the relevant subcategory in the forum or write to a suitable existing thread.

Thanks!

I disagree completely.  The extruder appearing the to stop could also be because of the deformed idler door.  If you've read thru all the posts on this thread you would see that I experienced very similar symptoms where the first layer, or couple layers would print fine, but then it would stop extruding.  In my case the deformed idler door wasn't applying proper pressure and as the printer sped up printing things like infill, extrusion would stop.  However the extruder gear was still turning, just not feeding filament.  Unless someone opened the idler door while the printer was running to verify the gear actually stopped, then they might think they have the same problem.

So if someone hasn't eliminated this as a possibility then they could also be contaminating this thread.

So unless your going to qualify everyone that posts here that they've covered all other possibilities first, like the idler door, then I'm going to continue to ask those qualifying questions. 

Posted : 11/01/2025 2:01 pm
Ray123 liked
Gik
 Gik
(@gik)
Eminent Member
RE: Xl extruder stops

Quite a coherent line of thought. But as the knowledge of the problem has manifested itself, it is no longer appropriate to keep adding to it.
But no matter, it would have just been a hint to keep track of things here.

Much more important than reheating something old again and again. I have information from a new support person assigned to me.
Quote:
"Thank you for confirming the error code that you got, and for also mentioning that the plastic parts have been removed yet this didn't fix the issue. At the moment we're running some testing on a few things that should fix the issue definitively (the Firmware was to confirm that the issue you're having is the same issue that we're working the fix for). We will soon give you more information as to what we'll do to fix your printer."

I'm still sure that the problem lies deeper than a PETG cover or an alleged loose contact which strangely always occurs in exactly the same place no matter where you place the object on the print bed but is not triggered by a deliberate wobble on the plug.

Posted : 11/01/2025 2:54 pm
Cloud1983
(@cloud1983)
Reputable Member
RE: Xl extruder stops

Unfortunately, I think you've misunderstood something here. I agree completely with @Gik's statement.

Posted by: @brian-12

 

Posted by: @gik

Guys please...this isn't meant to be an attack, but don't mix up the problems here in the thread.

This thread covers the extruder failure problem.
No filament feed, grip or clog problem. Other problems such as the alignment or assembly of various components should also not be included here either. This disrupts the course of the called problem and the attempts to solve the actual problem here.
The extruder failure is a characteristic clear problem that causes the extruder motor to stop from a certain point until the end or termination of printing. This has nothing to do with the idler lever not pressing the filament against the conveyor wheel hard enough.

As I said, this is not an attack against anyone. For other problems, please open your own thread in the relevant subcategory in the forum or write to a suitable existing thread.

Thanks!

I disagree completely.  The extruder appearing the to stop could also be because of the deformed idler door.  If you've read thru all the posts on this thread you would see that I experienced very similar symptoms where the first layer, or couple layers would print fine, but then it would stop extruding.  In my case the deformed idler door wasn't applying proper pressure and as the printer sped up printing things like infill, extrusion would stop.  However the extruder gear was still turning, just not feeding filament.  Unless someone opened the idler door while the printer was running to verify the gear actually stopped, then they might think they have the same problem.

So if someone hasn't eliminated this as a possibility then they could also be contaminating this thread.

So unless your going to qualify everyone that posts here that they've covered all other possibilities first, like the idler door, then I'm going to continue to ask those qualifying questions. 

 

Posted : 11/01/2025 8:18 pm
Brian
(@brian-12)
Prominent Member
RE:

 

Posted by: @cloud1983

Unfortunately, I think you've misunderstood something here. I agree completely with @Gik's statement.

Posted by: @brian-12

 

Posted by: @gik

Guys please...this isn't meant to be an attack, but don't mix up the problems here in the thread.

This thread covers the extruder failure problem.
No filament feed, grip or clog problem. Other problems such as the alignment or assembly of various components should also not be included here either. This disrupts the course of the called problem and the attempts to solve the actual problem here.
The extruder failure is a characteristic clear problem that causes the extruder motor to stop from a certain point until the end or termination of printing. This has nothing to do with the idler lever not pressing the filament against the conveyor wheel hard enough.

As I said, this is not an attack against anyone. For other problems, please open your own thread in the relevant subcategory in the forum or write to a suitable existing thread.

Thanks!

I disagree completely.  The extruder appearing the to stop could also be because of the deformed idler door.  If you've read thru all the posts on this thread you would see that I experienced very similar symptoms where the first layer, or couple layers would print fine, but then it would stop extruding.  In my case the deformed idler door wasn't applying proper pressure and as the printer sped up printing things like infill, extrusion would stop.  However the extruder gear was still turning, just not feeding filament.  Unless someone opened the idler door while the printer was running to verify the gear actually stopped, then they might think they have the same problem.

So if someone hasn't eliminated this as a possibility then they could also be contaminating this thread.

So unless your going to qualify everyone that posts here that they've covered all other possibilities first, like the idler door, then I'm going to continue to ask those qualifying questions. 

 

I'm not surprised. I guess I'll leave you to wallow in your sorrow while I continue to print without issue.  Just finished another 23 hour flawless print. 

I'm here to help while you seem to be here to just spread negatively. 

Good day sir.

Posted : 11/01/2025 8:51 pm
Gik
 Gik
(@gik)
Eminent Member
RE:

It's a shame that the course of the exchange of experiences takes such a direction.

Before this escalates, I wish everyone good luck with their personally chosen solutions and dealing with the extruder error problem.

Your solutions didn't help me so there is no reason to read and write on.

I'm withdrawing.   

Posted : 11/01/2025 9:42 pm
Fendbass22 and Brian liked
Brian
(@brian-12)
Prominent Member
RE: Xl extruder stops

 

Posted by: @gik

It's a shame that the course of the exchange of experiences takes such a direction.

Before this escalates, I wish everyone good luck with their personally chosen solutions and dealing with the extruder error problem.

Your solutions didn't help me so there is no reason to read and write on.

I'm withdrawing.   

I apologize as this was not directed at you. I appreciate your feedback.

This was directed at @cloud1983.

Posted : 11/01/2025 10:12 pm
csimian
(@csimian)
Member
RE: Xl extruder stops

 

Posted by: @brian-12

 

Posted by: @csimian

I have been trying to print the N7 logo for a while now. descriptions as follows:

Top: printed on 6.0.4 FW original dwarf cable connection.

Middle: printed with 6.2.0-RC1 FW with modified dwarf cable connector and cover per this thread.

Bottom: printed with 6.0.4 FW with modified dwarf cable connector and cover per this thread.

Material is PETG fed to my XL from a filament dryer.

I ask because your pictures look like underextrusion, not completely stopping.  If it was completely stopping you shouldn't see all those strings and damaged plastic 

I do not have those parts. Are they only available with the enclosure?

Posted : 11/01/2025 11:30 pm
Ray123
(@ray123)
Active Member
RE:

@csimian

Hello.

You can download the files related to the extruder idler from the link below.

You will need PCCF filament.(Before I bought the enclosure kit, I used ASA for printing.)

https://www.printables.com/model/449554-xl-printable-parts/files

idler-nut.
stlidler-swivel.
stlidler-lever-a.
stlidler-lever-b.stl

Or you can buy them from the link below.

IDLER NUT
https://www.prusa3d.com/product/idler-nut/

IDLER SWIVEL
https://www.prusa3d.com/product/idler-swivel/

IDLER LEVER A
https://www.prusa3d.com/product/idler-lever-a/

IDLER LEVER B
https://www.prusa3d.com/product/idler-lever-b/

Goodluck.

This post was modified 3 months ago by Ray123
Posted : 12/01/2025 2:49 am
Acht and Brian liked
csimian
(@csimian)
Member
RE: Xl extruder stops

I just had the new Red Screen of Death for the extruder failure. Was at 40 hours into the print. Frustrating

Posted : 12/01/2025 3:37 pm
Ray123 liked
Stephen
(@stephen-8)
Member
RE: Xl extruder stops

Prusa posted redesigned connector cover pieces and an installation procedure for the new parts.

https://help.prusa3d.com/guide/how-to-replace-the-main-cable-connector-cover-xl_831370

https://www.printables.com/model/449554-xl-printable-parts

Posted : 23/01/2025 12:22 am
SailorEric
(@sailoreric)
Estimable Member
RE: Xl extruder stops

Interesting they have a new cover. I'm still running the tight fitting dwarf cover and cable cover. Also running their latest firmware. One head is flickering on the LED but as long as the dang thing prints I will live with it. About 20 hours of successful printing now. I'm finally able to begin chipping away at a mountain of backlogged work and hoping that doesn't change.

Posted : 23/01/2025 7:32 pm
Stephen, Ray123 and Brian liked
SailorEric
(@sailoreric)
Estimable Member
RE: Xl extruder stops

Well, red screen of death.... A very pointed email sent. Now running with no dwarf cable cover. Maybe pitching this thing in the river is the solution? They need an actual solution not a guessing game.

 

Posted : 24/01/2025 9:44 pm
iptvengineer
(@iptvengineer)
Active Member
RE: Xl extruder stops

Update. Had no issues on several multi-day, single extruder (e1, TPU) prints with the enclosure fully open. Two extruder print (TPU in e1, PLA in e2), closed the top half of the enclosure and after about 24 hours, extruder 1 stopped. Still running same firmware and still have the dwarf connector snugged up. Restarted the print with the enclosure fully open and will see what the next 72 hours hold. New parts for the fix are expected in a couple of weeks, may consider the newer firmware at the time, but if it only provides the RSOD, I see no reason.

Posted : 27/01/2025 3:46 pm
PlaChef
(@plachef)
Member
RE: Xl extruder stops

  https://help.prusa3d.com/guide/how-to-replace-the-main-cable-connector-cover-xl_831370

 I got a link from Prusa support Jan 23

 I printed that parts. I didn't have square nuts enough. So I replaced old parts with new parts Only Tool#2

 21 hours of successful printing

 But It stopped again with red screen just now. 🙁

 

Posted : 02/02/2025 5:04 am
David Beriault
(@david-beriault)
Member
RE: Xl extruder stops

I swapped out the cable from my second head (with significantly less print time) and the problem went away on two different Prusa XLs.   Pretty confident that the poorly designed strain relief on the cable allowed for too much motion in the connector.  This motion equated to an intermittent (poor) connection to the Dwarf board.  My theory is the stepper motor driver chip (which lives on the Dwarf board) would see this temporary loss in connection (maybe power, commands, ground, enable, etc.) and locked out.  This would explain why the motherboard has no idea the extruder had stopped and why a power cycle would temporarily fix the issue.  I just received 3 new cables and plan to swap out the suspect cables.   Furthermore, I have already glued the strain relief to the housing to eliminate any wiggle so I will also need to replace these parts and plan to glue the new ones also.  Has anyone else tried this?

Posted : 07/02/2025 7:42 pm
Brian liked
balloon
(@balloon-2)
Active Member
RE: Xl extruder stops

Here is my solution that for me has given me over 100 hours or running without any issues. Some of my jobs are 10-15 hours in length. It is my belief that the issue is with the connections of the cable to the drawf boards. (As mention many times above) I also believe that the solution suggested by Prusa does not really work and the reason I say this is the connection between the cable and the connector needs to be under additional tension to make sure the all the connections do not vibrate and create electrical noise on the different lines. So my solution was first remove the original strain relief, 2) disconnect all the cables at the dwarf boards and flush both the cable ends and the board connection with electrical contact cleaner. 3) Make sure the connections are dry by using compressed air. 4) Reinsert the cables and bend the cables down tightly and towards the right side of the extruder using the v-opening for where the cable needs to sit.5) Make sure the outside sleeve is pulled back to expose the wires. 6)Insert the plastic block I made and make sure it is pressing on the wires and not the sleeve.  Make sure to seat the block as far as it goes. This needs to be a very tight fit. I attached a picture of what it looks like after the block is installed. This is presented here so show how I am trying to get by this issue. I make no statements that this is the solution all I know before this I could not run any job without failure and most of my print jobs use all five heads and now knock wood no failures.

Posted : 19/02/2025 1:10 am
sandwave
(@sandwave)
Member
RE: Xl extruder stops

I'm having this same problem.  The extruder motor stops moving mid print, and it won't load or unload and it doesn't detect an error.  After turning the power on and off again the motor works.

This is happening with PLA filament and a 0.25 diameter nozzle.  I have an enclosure but leave the top up while printing to avoid overheating.

Posted : 04/03/2025 5:08 am
Brian
(@brian-12)
Prominent Member
RE: Xl extruder stops

 

Posted by: @sandwave

I'm having this same problem.  The extruder motor stops moving mid print, and it won't load or unload and it doesn't detect an error.  After turning the power on and off again the motor works.

This is happening with PLA filament and a 0.25 diameter nozzle.  I have an enclosure but leave the top up while printing to avoid overheating.

Have you read thru this thread?  There are a few different solutions listed that have worked.  I recommend looking thru them and seeing which solution might work for your situation. 

Posted : 04/03/2025 11:53 am
Redfish875
(@redfish875)
Active Member
RE: Xl extruder stops

Hi, your solution sounds promising. How are the results after more print hours?

Where could I find your cover-model ? Thanks

Posted : 07/03/2025 10:40 am
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