Ultimaker uses functional, analytical and tracking cookies. Tracking cookies enhance your experience on our website and may also collect your personal data outside of Ultimaker websites. If you agree with the use of tracking cookies, click “I agree, continue browsing”. You can withdraw your consent at any time. If you do not consent with the use of tracking cookies, click “Refuse”. You can find more information about cookies on our Privacy and Cookie Policy page.
I think these strings are what I call a sort of "landing strings". I don't know if there is an official term for it. What I mean is that while traveling through air, the nozzle may leak a bit, and when encountering the next wall, that little drop is deposited on the side of that wall. On the next layer, the leaking drop is deposited on the previous drop. And then on that drop. And so on, causing weird upwards and outwards going strings, like insect antennas. It is a guess, but it is the only thing I can think of.
I do not have a good solution, but any solution (if this is indeed the problem!!!) should go in the direction of causing less leaks, or less movements through air, I think. Maybe print cooler and slower (=less pressure in nozzle), or travel faster through air, or travel over land instead of through air where possible, or more cooling fan, or changes in retraction settings (or maybe the printer doesn't even do any retractions when printing supports, which is why it leaks),...? Try watching carefully what happens while printing.
I do notice something similar when printing PET, which is more rubbery than PLA: so when printing overhangs or when traveling through air, it does not cause thin strings or hairs, but a blob under the nozzle that is deposited on the next wall or next obstruction that the nozzle meets in its travel.
Thanks for your reply. I think that is what is happening. I have messed with the retraction settings and printed with cooler temperatures but it is still doing it. I guess I could try slower print speeds but I'm not sure how that will help. I did try the "optimize wall printing order" feature but it did not help.
Link to post
Share on other sites
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.
They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access.
Ready? Register your product here in just 60 seconds.
Recommended Posts
geert_2 545
I think these strings are what I call a sort of "landing strings". I don't know if there is an official term for it. What I mean is that while traveling through air, the nozzle may leak a bit, and when encountering the next wall, that little drop is deposited on the side of that wall. On the next layer, the leaking drop is deposited on the previous drop. And then on that drop. And so on, causing weird upwards and outwards going strings, like insect antennas. It is a guess, but it is the only thing I can think of.
I do not have a good solution, but any solution (if this is indeed the problem!!!) should go in the direction of causing less leaks, or less movements through air, I think. Maybe print cooler and slower (=less pressure in nozzle), or travel faster through air, or travel over land instead of through air where possible, or more cooling fan, or changes in retraction settings (or maybe the printer doesn't even do any retractions when printing supports, which is why it leaks),...? Try watching carefully what happens while printing.
I do notice something similar when printing PET, which is more rubbery than PLA: so when printing overhangs or when traveling through air, it does not cause thin strings or hairs, but a blob under the nozzle that is deposited on the next wall or next obstruction that the nozzle meets in its travel.
Link to post
Share on other sites
Brook129 0
Thanks for your reply. I think that is what is happening. I have messed with the retraction settings and printed with cooler temperatures but it is still doing it. I guess I could try slower print speeds but I'm not sure how that will help. I did try the "optimize wall printing order" feature but it did not help.
Link to post
Share on other sites