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  1. #1
    Student
    Join Date
    Nov 2013
    Posts
    5

    problem with convex curling

    when ever i am printing a part weather it has overhangs or not the very edges of the print ( on the top layer ) curl upwards and i am printing in PLA. see here i am printing a standing man but his arms are curling way up above the extruder: https://www.dropbox.com/s/bwnj1a8laa...%2027%20PM.jpg and https://www.dropbox.com/s/8mgwhip69w...%2032%20PM.jpg

    any help would be nice thanks!

  2. #2
    Banned
    Join Date
    Oct 2013
    Posts
    259
    Not sure if this helps, but I found this on the reprap forum:

    http://forums.reprap.org/read.php?262,117402,120058

    Seems like there are several ways to try and avoid the curling.

  3. #3
    Engineer
    Join Date
    Oct 2013
    Location
    new jersey
    Posts
    752
    i didnt read red's link but your part needs more cooling time. i always try to print things like this along with other things so the hot end doesnt stay in one place too long and gives a longer cooling time. if you dont have anything else then try printing a 2-3 outlind skirt the same # of layers as you model. it will do one later on the model then go around and print the skirt allowing the fan more time to cool the soft plastic.

  4. #4
    Yep had the same problem. More cooling helped, but i havent found a good way to cool from 360° and not cool the nozzle at the same time. I have printed a funnel but thats covering on ~180° so far

  5. #5
    Technologist Kingoddball's Avatar
    Join Date
    Oct 2013
    Location
    Syd - Aust
    Posts
    193
    You can just chain on another fan or two?
    I had similar probs on my older printer, I just spliced on two more fans - Looks like crap, but helped with all of them issues.

    There is a file on thingiverse which holds three fans and aims toward the print. - I can't find it right now but have seen it numerous times.

  6. #6
    Technologist Kingoddball's Avatar
    Join Date
    Oct 2013
    Location
    Syd - Aust
    Posts
    193
    This is the one I mentioned:

    http://www.thingiverse.com/thing:198186
    - This here would cool pretty much everywhere you're printing and its using large fans.
    Last edited by Kingoddball; 01-27-2014 at 06:46 PM.

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