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  • Posts

    • I'm not convinced slashee is correct.  But I really don't know.  Sometimes you need lots of cooling as well.   anyway the infill looks underextruded which means there is probably underextrusion in other places but it's not as obvious.  Is it printing the infill faster?  That is usually the case.  If you are on the edge of underextrusion then it will happen more if you cool the nozzle, or if you print too fast.   If this was printing fine for many prints and then it got worse without changing anything then you need to clean the nozzle with some cold pulls.  Don't use bronze fill to do that. Regular PLA is excellent for cold pulls or you can use Nylon if you have any.  You can do cold pulls from the menu on the printer.  I think under maintenance maybe?  But if you watch some videos on youtube about "cold pulls" (it doesn't matter the printer type - cold pull is the same for all printers) then you can get the best possible pull.  Try at least 3 perfect pulls where you can see the tip in perfect shape.   The PLA (or any plastic filament) slowly carbonizes on the inside of the nozzle and you get a black or brown coating that is thin.  This makes the nozzle diameter smaller.  Eventually your 0.4mm nozzle is a .35mm nozzle and it starts underextruding just a little bit.  Cold pulls can fix this.   You can also scrape the inside of the nozzle if you have something sharp - the best tool is a hypodermic needle.  Hard to get.  #28 gauge is ideal as the diameter is 0.36mm.  I used to buy them and cut off all but the tip and include them for free when I'd sell people nozzles and things years ago.  I can't get them anymore in the USA.  You can use sewing needles, acupuncture needles, wire, etc but the hypodermics were the best by far - very sharp on the outer edge (sewing needles are only sharp in the middle so you have to scrape 20X more times).
    • I'm not sure I understand the problem exactly - do you need to launch Cura and not have a shortcut on your computer? If you're in Windows, when you install it, it should create a start menu entry. You can also go to C:\Program Files\UltiMaker Cura <version>\UltiMaker-Cura.exe and create a shortcut to that.   Or is the problem you're having somewhere on the Thingiverse website?
    • You don't need to bump your post after less than 12 hours, you know. Time zones and whatnot.   It would be really helpful if you could share a Cura project file (.3mf, get it set up then go to File > Save Project) so we can see all of your print settings. As well, information like what printer do you have, what sort of filament are you using, anything that might be able to help. A photo usually isn't much to go by.   The obvious answer is underextrusion in the extreme (which can have any number of causes) but that's usually more regular, not sporadic like this. Although being able to see the curves of each line also makes me think underextrusion; the filament is not filling out to create a smooth surface - usually I have to break out my macro lens to demonstrate that effect.   Could be a layer adherence problem too. Often the cause of that is printing at too low a temperature... but not always.   It's also possible it's something wrong with the printer - the extruder can't feed reliably or something.   So all the info you can provide (and a project file) can help us try and narrow down the cause of this 🙂
    • Hello, could someone please give me a tip? Or am I the first with the problem
    • Bonjour, J'ai le problème d'ascenceur horizontal avec toutes les anciennes versions aussi  5.7.0  -  5.7.1  -  5.7.2 et 5.8.0 (bêta). C'est assez ennuyeux, Si vous avez une idée, je suis preneur. Merci
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