Fixing Under Extrusion in a 3D Printer
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- Опубликовано: 22 окт 2018
- In this episode I show you how to identify common issues that cause under extrusion in your 3D printer and how to fix them. This is very important when 3d printing miniatures.
UPDATE: The two side alignment screws on either side of the heat break need to be left in as the grub screw does not hold the heat break tightly enough and Creality uses the side screws as a solution to the issue.
LINKS:
Amazon affiliate links (As an Amazon Associate I earn from qualifying purchases):
Bowden Tube fittings (not essential to begin with, but these are much better than the ones supplied with the printer and you will want to replace them eventually):
amzn.to/2JXDcvX
Extra nozzles:
amzn.to/2OjyPPa
Filament (eSun PLA Pro Gray). This is the best filament I have tried and helps prevent underextrusion:
amzn.to/2LRvx3S
Upgraded aluminum extruder for Ender 3:
amzn.to/2LJWGZW
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I really like your style.
You speak with knowledge and clarity.
No phony Utube antics.
Thank you for sharing your insights.
Thank you for watching! :)
No annoying background music either!
Ti
Why does this read like a poem?
I also am a big fan
By far the best Ender 3 guides on RUclips. Keep up the great work!
Thank you :)
You are the man. I'm not a beginner I actually have 6 printers the ender and Tornado included and I've been printing for almost two years now. I've came across so many of these issues over that time and had to figure out and fix them mostly by myself. I wish I had found your channel a lot sooner. I've learned a ton in the few videos I've watch of yours. Thank you so much my friend, your making things a lot easier for me and everyone else with these issues. You know your shit lol.
Thank you! :)
I am thoroughly impressed. Being fairly new to 3D printing, I had some minor under extrusion issues. After days of video watching and forum reading, I was lucky enough to come across your video. This one 20 minute video taught me more about my issue than all of my other research combined. Thank you for a very informative and detailed video!
You are the best person in the world for FDM tutorials/guidance.
Nobody can get straight to the point and make it simple and easy as you.
I’ve followed you for years and i still can’t find anyone on the internet that has been more helpful than you.
Thank you
Thank you for posting this, I truly appreciate it :)
I don't normally comment on videos but I had under extrusion going on 3 weeks. Yours was the only video that covered all the possible causes in a comprehensive way and helped me find the issue (gap between the bowden tube and nozzle). Thanks for getting me up and running again.
Wow this is by far the clearest, most thorough explanation of under extrusion and its many causes. Thank you so much!
I can't thank you enough. I'm new to 3D printing, purchased an Ender 3 Pro a couple months ago. Long story short I was having layer separation issues and other difficult to diagnose issues. I had narrowed it down to extrusion, but couldn't put my finger on it. Your video was invaluable, as my extruder mount had a hairline crack only visible from the underside after I decided to replace it with an aluminum one, per your comments. This coupled with a glass bed improved my prints better than factory. I couldn't be happier. Thank you!
Tom, Thank you for this wonderful video! It was just what I needed in order to fix my Ender 3. As a person new to 3D printing I appreciate all the diagrams, close up photos, and extra tips. I followed your other videos for the details on the extruder upgrade, cleaning out filament clogs, replacing the nozzle, replacing Bowden tube and Bowden tube couplers. You're the Best!!
Had a sudden under extrusion problem that was quite extreme. I thought I had exhausted every possible solution and was about out of ideas. Then I remembered you talking about heat creep and the cool side of the hot end. The only thing left that I hadn’t eliminated was the hot end heat sink fan. A small piece of melted filament was lodged deep in the fan that only came out after aggressively blowing out the fan. The fan was running just under normal speed due to the debris and it was creating a situation in which the filament was melting in the bowden tube in the heat sink area. With the fan fixed the extrusion issue was completely resolved. I was amazed at the dramatic difference in results due to a slightly slower fan speed. Thanks for all the great resources!
Another video that should be mandatory to watch for every Ender 3 user! Thanks a lot Tom.
I would have added extruder steps calibration as it turned out with many people (including myself), they were set too low.
Anyways, I just love your extremely competent videos! Please continue!
Thanks! Calibrating extruder steps is going to be its own video later on :)
I've been having extrusion problems for a long time now, replaced my bowden tube and couplers and was so disappointed to STILL be having issues. Turns out it was the guide on the extruder. Thanks so much for finally fixing my problem!
Glad it helped :)
Without a doubt the most informative succinctly presented video for troubleshooting under extrusion I have ever seen. Thank you very much. Well done.
I never in a million years would have guessed it's my extruder lever. You saved me from having to go back to the drawing board again. Pulled it off and saw that it was also cracked. Not just warn through
Thanks a lot! This guide really helped me get my Ender 3 going again, and I will definitely get the aluminum parts for the printer as well.
I'm so glad I found this video. I recently came across some printing issues, and I've tried re-leveling the bed and unclogging the nozzle, but now I finally know that the issue is under-extrusion. I thought I was going insane when I had spent 20-40 minutes leveling the bed, then seeing that the nozzle is trying to print in mid air. This has relieved so much stress for myself.
Great Video , one of the most informative I have run across. Forget what these ARM CHAIR QUARTERBACKS say. They are not the ones taking the time to produce these informative videos. It's way more easier to be a critic behind a computer screen than actually take the time to produce what you have done. Kudos !!
Thank you :)
Wow this is probably the best video I have ever seen on RUclips. Good volume, good content, clear instructions, etc. This is basically perfect.
thank you! the "end of spool" issue described something that I've been seeing and never put 2+2 together.
Thanks I had a jam blob accident and since then I've had stringing and under extrusion. Your videos have greatly helped to figure out how to get my printer back to working order.
Glad they helped you! :)
I’ve been plagued by under extrusion for quite a long time. It has kept me from being able to really enjoy my printer for years. After seeing this video I removed my hotend/ heatsink assy from the carriage, pulled out my boden tube and nozzle, and looked through the heat sink and spotted a gigantic wad of plastic that had formed in the hotend between the nozzle and boden tube. Cleaned it out and now my prints are 1000% better! Thanks for the trouble shooting tips!
Glad it helped!
Your presentation of the subject is very easy to digest, no waffle and to the point, excellent.
Your videos are consistently full of all the information I'm looking for without any filler. I will be referencing these videos for years to come. Thank you so much!!
Glad they helped you :)
The clarity of the technical assistance was really impressive and helped me. Excellent and concise. Thanks.
Great to see and hear someone who actually thinks before they start their camera. Thank you. Very helpful.
Sir, you are a master at this. When I bought my Ender-3 I promised myself not to mess around with upgrades and stuff. Just had an under-extrusion problem with it and your video is the best resource (by far) that I have found to help me. Based on your advice I upgraded the Bowden tube couplers and the extruder. In the end I think it was just tangled PLA that caused the problem but I am quite happy that I managed to do all this by myself with your videos and am confident it will save me problems in the long run. I hereby name thee Knight of Clear Explanations.
Huge thanks for this great video! It led me to the solution to my underextrusion issue. I appreciate that you start with "how to identify underextrusion" -- it's so easy to misdiagnose the problem and waste time debugging the wrong thing. For me the issue ended up being as simple as increasing the print temperature on my old spook. A great suggestion that I didn't see anywhere else! This was after I had disassembled the hot end like a dozen times. Thanks again!
Thank you so much for your clear explanations of what is happening when under extrusion strikes. Without your help I don't think I would have ever got my 3D printer to work again (not an ender 3 but other make) you have really helped me, I am forever in your debt.
One of the most informative videos I've watched out of dozens. Clean, clear, and detailed. Thank you - Parts ordered through Amazon link above.
Freakin awesome video! I just fixed my printer with your excellent help. I have replaced my nozzle, bowden tube and completely disassembled my extruder assy, and it turned out to be a filament plug in the hot end under the slipped bowden tube due to the cheap connector. Thank you so much! I'm very much a fan of your style of video. No bs music and jokes or missing detail. thumbs up and subscribe brother!
I just wanted to say that I had put probably a work week into a 3d printer I received second hand. I hadn't gotten anything out of it. Constant under extrusion. This video fixed it for me. I still have some tweaking to do but my prints are perfectly table ready now. Thank you.
I've spoken with Creality and the 2 extra hot-end screws must not be removed, they are to prevent bending damage to the heat break, they also give additional stability to hot-end and prevent head crashes from destroying the heat break tube.
A heat break is a few dollars, and many people (me included) run the hotend without the screws. I have never damaged my heatbreak even when crashing my nozzle into the bed. They are just trying to save their butts.
If you properly hot-tighten your nozzle, the heat block should feel immovable without screws.
I ran into a problem and I've found that your videos have been very helpful in solving it. Clear and concise. Thank you. Subscribed.
Much appreciated - the video is so clear and thorough.
My Ender 5 started misbehaving about 5 hours into an 12-hour print, and I couldn't figure out why. My current guess now is that I forgot to check for filament tangles at the start of a new spool. I was able to unwind/rewind a bunch of the spool to fix the new ongoing print, but I'll have to go in and properly resolve tangles afterwards.
My printer is running right now and i think you helped me fix all the under extrusions problems I was having. Thank you soon much x
You pretty much saved my life yesterday as I spent HOURS troubleshooting my CR10S Pro. Thank you!!
Glad it helped! :)
Great! just by watching your video I could just identified three possible reasons for my under extrusions - still seeing all the possibilities I am impressed how long my printer worked without these issue(s) - thanks a lot
I had both happen with my Ender 3. Cura defaulted to 3mm as well as my extruder wasn't feeding through what it should have been. I had to up my feed multiplier to 123%. After that she prints like a charm. Wish this video had been out 2 weeks ago! Will help others though. Thanks for doing these videos.
This answered a lot of questions that I had and a lot of questions I didn't know I had. Thanks for the great content.
My Ender 3 Pro is arriving this week [my first 3D printer] and I've watched a ton of videos to help prepare me. Your style of presentation is one of the best I've seen. Very clear, very knowledgeable, and presented [with the help of close-ups and examples] in such an easy to grasp manner. THANK YOU!
This is old but wow that's dedication
The heat creep from too high temperatures was an eye opener. Thanks!
👍
So much I learned on my own and you hit it all in 20 minutes! Still picked up good tips
Excellent, concise video. I've had most of these issues at one time or another and it can be very frustrating when you are at the beginner stages. Subscribed.
This was a really good video. I ended up removing the bowden tube and nozzle, and there was plastic built up in the gap just like the diagram showed. Thanks for the help!
This is by far the best video about the subject! Very clear and very easy to understand, Thank you!
every once in a while... i gotta get back to the Tomb of 3D Printed Horrors to fix my underextrusion problems... and it always works!
This video was immensely helpful!
The material was presented clearly and concisely without (as another poster stated) a lot of RUclips "antics". Very professional. Thanks!
I would add to others who are trying to troubleshoot this problem - I finally discovered that the filament guide lever (the one with the roller and spring attached) on my CR10s, WAS CRACKED! The plastic had cracked where the roller was attached to it so that the roller itself, HID the failure. The result was that every time I did something to stiffen the spring and apply more pressure to the filament "pinch" ... it would seem to work for a bit but the crack would flex giving me variable pressure and VERY inconsistent results. I now have an aluminum guide block to install :)
BTW - when I removed the OEM plastic lever and examined it closely, the "guide hole" had become triangle shaped as you mentioned in your video. Impressive, considering I have run only a little more than two rolls of filament through it!
long time listener, first time caller. thank you for existing, sensei.
I’ve been at my wits end trying to trouble shoot the problems I was seeing. Everything I changed seemed to only make it worse. Really kinda fell out of love with the hobby and then I watch this. Checked my stock ender 3 extruder for wear and there’s a big groove in the hole. Swapped it out for a metal one and, not an exaggeration, all my problems were solved. Thank you good sir
thanks for this, I had some issues that had no solution on forums - your explanations on each potential cause were easy to follow and narrowed my faultfinding so as to fix my under extrusion problem. thanks for clear and precise comments and suggestions.
Dude this video is absolutely amazing, you give so many solutions, and you speak in a great manner thats clear.
LOL...I literally ran into the printer room to up the temp by 5 degrees at the beginning of the video! Cheers Tom!
I know this is a 3yo video, but I appreciate it. Being in Hawaii, filament sucking up moisture is definitely an issue. Thanks for posting this.
Thank you for the detailed run through of the most common possibilities of under extrusion. This will help me diagnose and hopefully resolve my issue.
Thank you for this; saved me a day of troubleshooting. Helpful and well made!!
I have an Ender 3 Pro that I bought secondhand from a 3D printing company, so a lot of your modifications have already been done.
I am having a bit of an issue with getting it printing properly though, hence why I'm here.
the most informative and knowledgeable 3D printer video I've ever seen. Thanks a ton. If there is a small window simultaneously zooming which part you are describing , will be much better. Just my 2 cents.
Using most of these tips for my Ender 6 Corexy.
This has been extremely helpful to diagnose my problem.
(Bowden connection, going to change my heatbreak and Bowden clips and Bowden tube)
Very useful and interesting tips, I learned to understand better the melt process in this type of printers, thanks a lot
oh thank you so much! you were the only one mentioning the bowden tube seperating from the nozzle, which was the case for me! i have been having trouble with this ever since i bought my cr10s a year ago, but now, i finally got it fixed!
Great video. Thanks for the tips. I have one suggestion: when you talk about the "cold pull" cleaning, specify that the temperatures you're quoting are for PLA filament. A raw beginner may not know this and try doing it with a material with a higher glass transition temperature such as ABS or PETG and get frustrated that it didn't work.
Good point! I definitely need to do a video on performing cold pulls.
Thanks this helped me solve my issue of under extrusion, the tube was clogged where it meets the nozzle, just like how you explained.
Great!
you hit of a lot of good points with this... when i first got a ender 6 months ago very little of this made sense...now after owning 2 printers and having so many issues ,it all makes perfect sense to me..
The intro made me subscribe already but thanks for explaining this so well! Makes me happy there are such great people in the 3d printing community.
Best tutorial ever! Too much value in only one video. Thanks for taking the time! One more subscriber here.
I came here to make a Lester joke, but stayed for the best 3d printing tutorial I've seen. Thank you! I was getting beyond frustrated with my E 5+
I'm super impressed with this video. I'm having a lot of this issue. I'll try what you've shown. I made a 74 hours print that I like a lot but it has under extrusion issues. It's great but it could have better. Thanks!
Updated option to the problem with heat creep: Replace your print head with a Micro Swiss All-Metal head. It doesn't have the screws that transfer additional heat, and the heat break is make from titanium, which has better thermal isolation.
Overall solid video. Keep them coming.
The best explanation of potential issues that I have seen so far.
Very informative video! Thorough explanations and visuals make the different clogging situations and cures clear and concise. Subscribed....
Thank you for subscribing! :)
Wow, you're a real pro! Thanks for those really clearly explained causes and how to fix them. Absolutely wonderful and of course I subscribed to hear more of you again! ;-)
Great video! Direct to the point, excellent information and good visual. Congrats!
You're awesome man, I've watched a number of videos but you really helped clear up some issues. Thanks a lot, you earned my sub bro.
Great video, definitely put me on the right track for fixing my problem, even though it wasn't specifically mentioned. I eventually found that the plastic extruder backing holding the filament guide/roller/bearing had cracked. That caused a lack of pressure against the filament, so I replaced with the metal extruder, works like a champ now. All that said, I'll be returning to your channel for any future print problems, thanks!
Thanks for watching!
You really helped me man I went through every site and video nothing gave me this good idea about the under extrusion
You just got me as a subscriber. I love the way you speak clearly an with knowledge.
This actually is a very informative video. Great job, the PTFE tube not close enough to the nozzle was the problem in my case. It caused underextrusion and another problem, the filament started to build up in de heat block. Because of this friction the extruder gear started to slip, resulting in even more underextrusion.
Thank you! I've been having unknown underextrusion since I moved computers and found out that cura changed the default to 3mm! I was so mad but also relieved it was such a simple fix
yes... i never even thought of that... not sure what my files defaults really are... i sliced them months ago and currently have no cura or pc only chromebook.
So my Ender 3 is about to arrive in some days or week... and something that cheap and modular would normally have me worried. But knowing there are people like you out there, making these awesome videos and doing so much support on facebook and reddit, i'm not afraid of stepping into this, knowing you guys have us new users back.
Thanks!
As a rank beginner in 3D printing, I think you will be VERY happy with your Ender 3, and as you said, having channels like this one will get you set up fast with no guessing.
A new sub........ I am looking to get my first printer and believe me when I say, I know nothing about 3D printing. The Ender3 is on my radar and within my initial budget so your videos are a huge help, even before I get my printer. Thank you so much for your presentations and be rest assured, they are very much appreciated.
I want to thank you for these videos. I have been having under-extrusion issues with my ender3 for months. Printer was not functioning. I tried a bunch of tips I found online, then watched your vid. You recommended replacing the feed mechanism, so I bought the one you linked to. It came in today. When I removed the old one, I found that the arm with the feeder pulley was cracked on the feed gear side. The pulley stayed in place, but could not maintain tension. I hooked up the new part, leveled the bed, and am successfully printing. Thanks!
Great!
YOU ARE A LIFESAVER!! This is the best video I've seen on under extrusion and everything is explained so well! Thank you so much!!
Glad it helped :)
Very Professional and easy to understand. Thank you!
You are a talented teacher my friend ..thanks for this . It made it easier for me to explain to my students and is a great lesson
Excellent video, informative, and precise, thank you so much
I am a new printer just a few months in to it , love your videos they have helped me very much thank you for all you do.
Thank you for being so clear and helpful!
instant sub. you are awesome. thank you for making a video that directly addresses the issues. lots of stuff to try to fix under extrusion on my ender 5 thanks to this video.
The tube backing up in hot head was my issue, there was crap in there and was giving really bad prints. So I've cleaned it out entirely which took some doing top to bottom, refitted with the tube better positioned and a full bed re-level for good measure. No more printing more problems :)
Thank you
Thank you so much for the information that you provide in your videos ,Sir!
As a new 3D Printer user ,I found a solution to major issues thanks to you!
Great work man! I'm chomping at the bit for the supports video.
Nice overview over possible errors
Thanks for sharing😀👍
Great explanation and very well structured video. thanks for sharing.
Very well explained, thorough and techy, deifnitely will subscribe!
Another fantastic video, Tom. Thanks so much!
Thanks :)
This was super informative and surprisingly entertaining. Awesome video! Thanks man!
Damn, you are an underrated channel. You are at a Thomas Salander level if not above.
Thank you :)
thank you so much for discussing this issue thoroughly! Kudos from my part of the world!
Plagued by Extrusion issues for days, turned out to be that cura had the wrong size filament setting. You are than man, prints now smoother than ever.
Thank you for sharing your knowledge and tips. I am brand new to 3D printing (so new that my first ever printer is still en-route and yet to be delivered, ha-ha), so I am searching for every scrap of information I can find so as to prepare myself as I begin my journey down this 'rabbit-hole'...I've subscribed to your channel, and am working my way through your videos, and am thankful for the time and effort you have put into creating them. Your explanations and way of speaking is helpful to me as I find that you are not presuming that a viewer has a lot of prior knowledge, and so I, as a complete beginner, can understand and grasp the concepts.
And thankfully you do not have annoying music and special affects which so many u-tube "wanna-be's" use...that in and of itself makes your channel stand-out above others in my opinion.
Thank you again for the time and effort you've put into all these videos...I am learning a lot and am grateful. 👍