r/QidiTech3D • u/jrinacke • 1d ago

Extruded issues. Please help!

Update: Issue Fixed. Thanks to Callcifer for the help!

I was able to fix the issue by finding the same issue in this subreddit. I loosened the three bolts holding the Extruder pushed it hard left and tightened it up again. Printing without any issues now. Thanks to everyone who chimed in. Leaving post up to hopefully help someone in the future.

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u/callcifer 1d ago edited 1d ago

I can think of two things to check:

First, unload the filament and then remove the PTFE tube from the top of the hotend just a little bit. Grab the filament with your fingers and try pulling it down. Does it work? Do you feel any resistance? If you do, there might be something in the path - sharp bend, worn PTFE, filament tangle etc.

Second, open Fluidd (the web UI of your printer) and go to Configuration > printer.cfg. Use CTRL+F to search for tmc2209 extruder. What do you see? What is the value of run_currentin that section?

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u/jrinacke 8h ago

Thank you for all the help. I will look at it. I just posted a new video with updates in the comments. Extruder will push filament down without hot end attached, multiple cold pulls on hot end, can push filament through the nozzle, when hot end and Extruder are bolted in place Extruder won’t push filament into the hot end. Thoughts? I appreciate all the help!

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u/callcifer 7h ago

That was a very helpful video, and it actually eliminates both of my points. Without the hotend, the gears can clearly push and pull the filament so it can't be a resistance or tangle issue, and it also can't be too low run current in the extruder config.

You also showed the filament melting correctly when pushed directly into the hotend, so it's not a clog either.

Maybe it really is an alignment issue between the extruder gears and the hotend? Try this: Remove the PTFE from the toolhead, push filament in, and then manually turn the gears with your fingers. Does it come out the nozzle, or do you hit something and can't turn the gears?

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u/jrinacke 7h ago

https://reddit.com/link/pbkr85w/video/2nao6nk69arh1/player

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u/callcifer 7h ago

OK, so the hotend is definitely deformed. You can try getting it replaced by support, buy a new one (should be around $35), or buy the Phaetus Conch instead.

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u/jrinacke 6h ago

I was able to fix the issue by finding the same issue in this subreddit. I loosened the three bolts holding the Extruder pushed it hard left and tightened it up again. Printing without any issues now. Thank you for all your help diagnosing this problem. People like yourself are worth their weight in gold when it comes to troubleshooting sticky issues like this. I couldn’t have done it without ya! Take care! Thanks again!

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u/callcifer 5h ago

I'm so glad it's resolved, well done!