Thank you Lee, Very well explained, I like how you gave full description while dismantling while also mentioning screws sizes & lengths, this can be confusing. Well done.

well you saved the day. Just a Mom trying to help her kid navigate 3D printing. Out of my depths but you just made it easy to understand and get us back to printing!! Thank you.

Thank you for THE best video on the entire internet ... you have turned the incredibly intimidating into something manageable. Much appreciated.

Thanks for this! One thing I'd like to add (at least in my case): double check the gear held onto the extruder motor - the grub screw on mine was loose and I likely wouldn't have noticed except the gear slipped off the end of the motor shaft while i was removing the motor. Good time to check/realign/tighten the gear while it's this far disassembled.

Thank you for this clear and concise tutorial! I encountered a clog I could not simply push/pull out last week and now I'm back to printing!

Thank you so much for this! I had the Prusa Knowledge Base guide to follow but seeing the process in action was very helpful!

Thank you, this video was perfect and helped me out as well. I had a nozzle adjusted wrong and caused a slight buildup of plastic in the bottom of the hotend. Totally blocked filament from coming through. Once it was all apart I broke it free with the smallest hex driver and then turned it upside down and tapped the hotend until the blocked plastic fell out. Wouldn't of been able to disassemble without this video!

This was a real help. Very thorough!

Although I didn't have your exact issue, I had a problem where the heat break / block became loose. This saved me rear in fixing it. Cheers and thank you!

Like the others, Thank you very much. I appreciate you making this video. I also immediately subscribed. Also thank you for the advice to not turn off the printer before is has cooled under 100 C .

Thank you so much for this video. It was just what I needed!

Thank you so mutch! I tryed fixing the problem for houers, with the Video it was done in 15 mins !

Thank you I wasn't aware of the collar

Found that super helpful 👍🏻. My first PTFE tube blockage that took me a while to work out (printing was misbehaving, slow process of elimination, then got a total blockage!). Thanks for sharing!

thank GOD you posted this video. I've just started 3d printing and made this mistake. I posted to the prusa forums and so far no one has nailed the culprit of my filament getting jammed inside the ptfe tube. I really just wanted to know the mistake I made so I can NEVER do it again. So, basically NEVER turn off the printer if it's not cooled down first?

Thank you so much for making this video man, this helped me out tremendously. Keep up the good work.

This video was great. Informative and to the point. Great job. I was able to fix my printer issue.

Really appreciate the video it was exactly what I needed. Straight to the point love it.

Thank you for this video. Just unboxed my mk3 and made all the mistakes you discribe. Was able to fix my clog with your help (even heating up the nozzle to remove a stubborn ptfe). Thankful i can get back to printing!

Great video. I'm new at this and was not at all sure about doing this. This video really helped. Thanks

Thank you for this video. It was just what I needed and very easy to follow.

Thank you for this helpful video!

this was exactly what i was looking for! thank you for the detailed video

Going to try this. Great video.

Great guide, also check the tube if it’s empty then unscrew and check the top of the hottende

Thank you so much this helped me. It was clear and to the point.

Thanks Heaps - I had this exact issue, and fixed in a few minutes thanks to your video.

Great video!!! Thanks a lot.

Wow this was extremely helpful and I learned a lot. Thank you!

Thanks for the video! Extremely helpful!

Thank you so much!

Great video this helped me heaps! :D

Exactly what I was looking for! Thank you so much :)

I’m new to printing. My filament got stuck mid print. I believe the collet above the tube loosened a bit. I had to remove the heat block to fix. But I didnt have thermal paste so it hasn’t worked right since. Paste is finally here. I will try again. After pulling this apart several times. I’m not too excited about the design. Decided to buy the new Bondtech LGX to hopefully eliminate a few flaws.

Thanks a lot, really helpful.

Great content !!!

This was so helpful! Thanks a lot!

thank you good sir

Great video!!!! Super helpful, thank you :)

Very helpful video thank you. I decided to replace the heat block at the same time. Is there an easy way of getting the thermistor out of the block. I heated it up but was not successful. Do you recommend running a silicon sleeve to stock the blocking leaving black burnt bits behind. Thanks a lot.

Nice video but I never put all screws in the same bucket. It is confusing for a beginner and really best practices when disassembling a machine...but otherwise great video!

Hey Lee great video thx for sharing! i had a loose PTFE tube like yourself and i tried switching it out, but the new one wouldnt sit tight in the black sleeve, im a noob so only thing i could do was buying a new assembled hot end, do you think Prusa should start making better hot ends or are there another thing i can try next time this happens, the old hot end was only 1 month old, and like in your video there was play in the tube and i just couldnt make it sit tight, very frustrating lol thx again for your great video

hi there i'm having a problem that the hot end is not heating up eg the nozzle. Would you know what this is? is it the Hot end heater cartridge thermostat ?

I did all of this and wondered what happens to an eventual clog of filament that would get stuck in between the ptfe tube and the rest of the extruder? I feel like changing the ptfe tube would not remove it because you’d probably put it right back where it was. I don’t know if that makes any sense to you. I feel like my ptfe tube is not the issue, that maybe there’s still a gap down there.

Thank you thank you thank you! Just got my MK3s and already had a clog....

Do you know why my collet might be stuck in the heatsink? after I had this issue, I also had an extremely hard time getting the collet out of the top of the heatsink. I couldn't push it down at all. I put the prusa together but the heatsink came with the collet and ptfe tube already assembled. did the person assembling the ptfe tube and heatsink possibly assemble the collet incorrectly or did the printer jam it somehow?

I am about to replace my PTFE tube after my filament would get jammed during every print until yesterday where it jammed and got stuck in the PTFE tube. I think my issue was that the collet that holds the tube in place would go down and cause issues. Do you think using a collet clip is useful at all, I noticed your machine didn't have one either?

I broke that little black clip/collar holding the ptfe tube to the hot end What’s it called and where do i buy one

Awesome video!!! Quick question… I am using the exact printer in the video. I replaced my nozzle and became a water that my heater block moved side to side rather easily while I replaced the nozzle… Will this cause an issue?

The mini doesn’t have the locking collar as is customary in these type systems (air compressor etc.). Prusas design for how the PTFE tube is seated is very very bad. I’m not sure if you’re familiar with the process but you basically need to keep the PTFE tube clamped between the block and the top of the filament port while you tighten the grub screws into the heatsink. Unfortunately this is a very inefficient design flaw IMO. I have been trying to fix the heat creep PTFE Seating problem ever since I noticed underextrusion/barely any extrusion and clicking from the extruded gearing mech. After finally localizing the PTFE searing problem the solution is very hit and miss. Is there a replacement possible where the PTFE tube is replaced by a metal tube? Or is the tensile flexibility of the PTFE a necessity for the proper functioning of the assembly?

My filament got stuck mid-print, well actually just 5 mm up, so not because of heat creep, maybe dirt. Anyways, since I plan on printing flexible some time in the future, I think I'll use Capricorn tubing. It would be nice to know the exact length of the tube. Is it worth it to "sharpen" the PTFE tube so that it nearly wedges in between the cogwheels?

Great video! I have an mk3, is the process a lot different? Any tips for doing the PEFE sawp on an mk3? From what I have read so far the print head is different in some ways from the mk3s p rint head so thought I would ask.

How to do it on a i3 mk2?

Not able to press the black ring. There is no movement at all :(

Fn happens because cura just decides to crash but continue printing!!! Layers are perfect but this happens alot... if I use repetier host with cura not as nice layers but no heat creep go figure...... I'm sure I'm missing a setting in cura somewhere haha. Soooooooo many settings!!!.. in saying this I did just get my 13 pro b geeetech *ebay* to print with rainbow silk pla.... then decided to try ultimaker cura.... instant regret haha ..

I built my own mk3, and didn’t realize that there was supposed to be a taper on the ptfe tube end that is seated inside the hot end. What will happen without a taper here?

What is the PTFE length?

Do you do the upgrade to the +