# Clogged Sv01 i think? **URL:** \ **Category:** Sovol SV01\ **Created:** [October 29, 2025, 5:28pm UTC](https://forum.sovol3d.com/t/clogged-sv01-i-think/8954 "2025-10-29T17:28:01Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Monosyllabix](https://avatars.discourse-cdn.com/v4/letter/m/22d042/32.png) [@Monosyllabix](https://forum.sovol3d.com/u/Monosyllabix)\ **Post date:** [October 29, 2025, 5:28pm UTC](https://forum.sovol3d.com/t/clogged-sv01-i-think/8954/1 "2025-10-29T17:28:01Z")
Hi, i’m into 3d printing for about 2 years now and never had to troubleshoot Clogging problems, but here i’m ^^ History of the thing : i’ve printed an object who was a totally mess (pla) and had to replace my bltouch pin. after that, i could not print correctly and found out that there was probably something with the flow. So i opened the print head, released the nozzle and have successfully (haha i think not) unclogged it. All was done right, with a high temp (230 C) and i replaced all the stuff where it belongs. Still, no pla is going through the system, so i used a pin to go through the nozzle and found out it was really difficult. Pushed trough hard and some filament passed really well. Added some strokes, and now the nozzle goes in the nozzle like butter. But still, the filament can’t go through. I also tried to get a really a high temp (250) with no result., no drooling. How can i find out what is going on ? have i to buy some nylon filament ? I think it won’t pass. Thanks for your help, having a real struggle here 🙂 Cheers, Mono ---
**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\ **Post date:** [October 29, 2025, 9:57pm UTC](https://forum.sovol3d.com/t/clogged-sv01-i-think/8954/2 "2025-10-29T21:57:42Z")
I had horrible problems on my SV01Pro. The filament tends to stick inside the “post” below the feed rollers and the top of the heat break. The extruder is difficult to strip down far enough to use a heat gun on. If you remove the nozzle you can use a drill bit from the bottom. Use care to stop drilling BEFORE you damage the feed rollers. After the 3rd time I had to resort to the drill I obtained some 3mm OD x 2mm ID stainless tubing. I drilled out the passage and put the tubing inside. 2 years later I’ve not had a clog I couldn’t “pull”. ---
**Author:** ![Bjoern](https://avatars.discourse-cdn.com/v4/letter/b/46a35a/32.png) [@Bjoern](https://forum.sovol3d.com/u/Bjoern)\ **Post date:** [October 30, 2025, 4:27am UTC](https://forum.sovol3d.com/t/clogged-sv01-i-think/8954/3 "2025-10-30T04:27:32Z")
Hallo Mono, meine Empfehlung: Eine neue Druckdüse besorgen & verbauen. Während des Düsenwechsels muss sich das System auf Drucktemperatur befinden. Zudem bietet sich es sich an, dabei Handschuhe zum Schutz vor Verbrennungen zu tragen. Zur Vermeidung des beschriebenen Problem kann die Reinigungsnadel in die Filamentzuführung eingeführen und festgeklemmt werden. Damit wird die Düse während des Verschraubens zentriert. Beim Fixieren der Düse ist etwas Drehmoment erforderlich, damit die Verbindung zwischen Heatbreak und Düse hinreichend dicht ist und kein geschmolzenes Filament seitlich herausgepresst werden kann. Viel Erfolg! Björn ---
**Author:** ![Monosyllabix](https://avatars.discourse-cdn.com/v4/letter/m/22d042/32.png) [@Monosyllabix](https://forum.sovol3d.com/u/Monosyllabix)\ **Post date:** [October 30, 2025, 4:33pm UTC](https://forum.sovol3d.com/t/clogged-sv01-i-think/8954/4 "2025-10-30T16:33:59Z")
Thanks a lot for the answers 🙂 So i think i’ll buy spare parts, if i can find them… So sorry that Sovol do not sell them anymore, if i’ve well searched. ---
**Author:** ![Bjoern](https://avatars.discourse-cdn.com/v4/letter/b/46a35a/32.png) [@Bjoern](https://forum.sovol3d.com/u/Bjoern)\ **Post date:** [October 30, 2025, 6:54pm UTC](https://forum.sovol3d.com/t/clogged-sv01-i-think/8954/5 "2025-10-30T18:54:16Z")
Hallo nochmal, eine passende Düse sollte problemlos zu finden sein - die Maße [sind hier verfügbar](https://www.sovol.tech/products/sovol-3d-printer-mk8-brass-nozzle). Sofern kein All-Metal Heatbreak verbaut ist, würde ich zudem etwas Teflonschlauch (PTFE-Tube, vermutlich 4mm/2mm Aussen-/Innendurchmesser) mitbestellen & beim Düsenwechsel auch gleich das Schlauchstück im Heatbreak ersetzen. Viel Erfolg! Björn PS: Das beschriebene Problem [wurde auch hier diskutiert](https://forum.drucktipps3d.de/forum/thread/5090-sovol-sv01-direkt-extruder-probleme-bei-filamentnachschub/). ---
**Author:** ![Monosyllabix](https://avatars.discourse-cdn.com/v4/letter/m/22d042/32.png) [@Monosyllabix](https://forum.sovol3d.com/u/Monosyllabix)\ **Post date:** [October 31, 2025, 4:47pm UTC](https://forum.sovol3d.com/t/clogged-sv01-i-think/8954/6 "2025-10-31T16:47:53Z")
Hi thanks a lot for the response. I’ll probably give it a try, i could learnt a lot of it 🙂 I’ll search what i’ve to buy and will share it here to know if i’m doing right, before to buy the parts. Once again, thanks for the help, i’m grateful. Cheers ! ---
**Author:** ![Monosyllabix](https://avatars.discourse-cdn.com/v4/letter/m/22d042/32.png) [@Monosyllabix](https://forum.sovol3d.com/u/Monosyllabix)\ **Post date:** [October 31, 2025, 5:00pm UTC](https://forum.sovol3d.com/t/clogged-sv01-i-think/8954/7 "2025-10-31T17:00:13Z")
I’m answering to myself : I’ve found spares form my package and already have a nozzle. Are we okay that this what i’ve to change, and add a PTFE-tube in replacement of the old one. I’ll post it when it’s done ! ---
**Author:** ![tjb263](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/tjb263/32/168_2.png) [@tjb263](https://forum.sovol3d.com/u/tjb263)\ **Post date:** [March 27, 2026, 1:36am UTC](https://forum.sovol3d.com/t/clogged-sv01-i-think/8954/8 "2026-03-27T01:36:39Z")
you may have allready found a new hot end. I have replaced the one I have with an **E3D All-metal v6 HotEnd, it fit great.** I change heat cartridge and thermo couple flashed firmware to use it now i can safely print ABS and not worry about teflon tube distruction.