Ender 3 Not Extruding FIlament While Printing

[ruby rune]

I recently got an Ender 3 printer, and I have been having issues with the extrusion motor not feeding the filament through the nozzle when trying to run a print on Klipper sliced in OrcaSlicer.

I have tested with manually pushing the filament through the tube and it seems to come out of the nozzle.

I have also tried running the extrusion motor at a really slow feedrate, like G1 E50 F10 was the exact G-code command I used for that test, and it also fed through, albeit dreadfully slow as that feedrate would imply.

Also, I have tried feeding the filament through using the filament load (fast and slow) button on the display of the printer, this also did not work.

And throughout this I have tried tensioning the spring that pushes the roller against the filament and the feed spur on top of the stepper motor to no avail.

Is there anything else I should try? As I have tried what I can think of to get it to feed while printing.

[glacial radish]

AI Help

It sounds like you've already tried several troubleshooting steps. One possible issue could be a clog in the nozzle that is preventing proper extrusion during the print. Try a cold pull to clear any obstructions in the nozzle. Also, ensure that the hotend is heating to the correct temperature for the filament you are using. If the problem persists, you may need to check the extruder gear for any debris buildup or wear that could be affecting filament feeding. Additionally, consider adjusting the slicer settings for retraction and flow rate to optimize filament extrusion during printing.

WARNING: This response is AI generated and may contain errors.

[ruby rune]

Filament material is PLA, was printing at 220C and doing troubleshooting manually at 215C

[ruby rune]

The nylon thing that needs to be pushed down to remove the tube from the printhead wont budge so I cant easily do a cold pull
(I did remove the blue plastic clip keeping it from moving)

[wise oracle]

(been helping them with the printer a bit - they're talking about disconnecting the bowden tube from the hotend):

[ruby rune]

Attempts at removing the bowden tube led to me removing the fitting, and the tube still cant be removed from the hot end

Heated it up and was able to remove it, black plastic was built up on the end

[unkempt lark]

that means it burned, I'm not sure if it is the right way to do but I had the same thing and I diassembled all the parts of my hotend to find out between the PTFE tube and the nozzle a little ring of filament because my PTFE tube wasn't flush with the end of my nozzle so I had filament that would cause to partially block the flow of my nozzle and inevitably it made my extruder skip since it couldn't push the filament that was constantly melt and not melt between the 2 parts. To clean it up I took an allen key a little smaller than the with of my heatbreak, wrapped it with toilet paper and "pushed/scraped" out the ring of filament out of it, you could do this when the hotend is heated up (way easier but more dangerous since I burned myself 3 times with this technic 😅 )? I hope it helped you.

I forgot to mention but if you do the manipulation with the hot hotend, don't use the toilet paper since it will burn inside the heatbreak. Just gently push it with the allen key. Try not to scrape the inside of your hotend, it isn't that big of a deal if the scrapes are small but it still isn't good to scrape the inside of it

[ruby rune]

I have to go for now, but I did a few cold pulls after getting the bowden tube out, and I fed it through again
Now the issue seems that it needs more tension than I can possibly give it to even move the filament, if I push back on the tensioner like this itll feed, but I cant put any more torque into the screw on the tensioner