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Paramesh

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Posts posted by Paramesh

    Filament stuck in the core

    in UltiMaker 3D printers

    Posted

    On 3/16/2023 at 9:32 AM, gr5 said:

    This happened to me once or twice.  But it stuck above the top of the print head so after I sliced it the top half was trivial to remove.

     

    So I'd try pushing it town through.  Go to the middle menu on the left and click the top right where it says "PVA" (or alternatively the middle right where it says "BB 0.4".  Then in top right corner click "..." and select "MOVE" (or temp if you had selected BB 0.4).  This should heat it up to melting temp.

     

    Then cut a hand's length of pva and push down in from the top to push the the PVA into the core and out the nozzle. Do this until you think you got it all pushed out.  Then this is an opportunity for a cold pull.

     

    Turn the heat off and continue to apply gentle pressure from above until it stops oozing out the nozzle.  Wait until the temp is about 100C and pull firmly upwards (to avoid bending the rods move the head in any of 4 corners).  If the printer lifts off the table and it's still not pulling out, raise the temp by 10 or 20C, pulling at the same time.  A perfect cold pull will end up with the tip of the filament in the exact shape of the inside of the nozzle including the .4mm tip.

     

    I don't know the "cold" temp for PVA.  I just don't remember.  I done cold pulls with PVA but I have since forgotten the temp.

    the print core AA0.4 was stuck with material and I couldn't print anything and did not know how to fix the issue. Thanks for the post, I followed what is written in the post and got the issue resolved.  1) unloaded the wire.  2) went to print core AA menu     3) selected 3 dots on the top right corner                4) set temperature to 250C           5) waited for a minute                  6) now loaded back the wire, and 7)  the stuck wire came out just like that.   Thanks to @gr5

    • Like 1

    print surface has small holes, is there any product that could be used to fill these holes

    in UltiMaker 3D printers

    Posted

    print surface has small holes, is there any product that could be used to fill these holes?

     ( like on wallboard or any wall we fill putty, like on any sheetmetal work of automobile during manufacturing we fill silica sealant to seal the gaps/holes and make the parts surfaces look better)

     

    do we have any such product in 3D printing, to fill the holes and make the print look better.

    we used LA blue for printing. 

     

     

     

    image.thumb.png.dcffbcb7db0526184d4eaf90f21cb6c8.png

     

    image.thumb.png.bb236070e04ab17ea81f7e63badc1b84.png

    material 1 feeding stops

    in UltiMaker 3D printers

    Posted

    sure smithy will take care in future, and thank you for the response 

    actually this Monday (Today) we have sales people coming from all over the world, they come to visit the plant yearly once, and during their visit they also visit our prototype building shop wherein they would see me printing some 3D prints.

    that's the reason I was rushing to get answers from Ultimaker experts in last week. I just wanted everything to function normal during their visit. and hopefully it does happen

     

     

    Thanks

    Consistent Underextrusions and Print Failures on Ultimaker S5

    in UltiMaker 3D printers

    Posted

    On 11/25/2021 at 8:37 AM, phrozen5100 said:

    Update: 

     

    I figured out one of the problems. The inconsistency was a result of the fan being occasionally jammed by some PVA strands from the previous owner. This was causing heat soak in the hot end, essentially reducing down and - in one case - actually fusing the filament to the tubing. Clearing the fan up completely and cleaning up the feeders has resulted in good prints. 

     

    Hopefully this helps somebody, as I never would've expected to see that.

     

    Now onto other issues...

    what fans you are referring to

     

    material 1 feeding stops

    in UltiMaker 3D printers

    Posted

    Someone please help me, so far I have lost atleast 11 3D prints and a big waste of time.

     

    material 1 feeding stops and the print head runs without any material, and thus the print is incomplete. the reason is shown in attached picture, the tube comes out or material flow stops,......

     

    so far I have taken different steps to solve this

    1. initially there was Tough PLA Black when this problem first seen, thought tough black has some problem, so changed to PLA blue. but on the new print also , the same problem occurred

    2. checked outer tube end portion, thought may be a bit worn out, so I did cut that portion. but problem still continued

    3. did reset on factory settings of the machine, but problem still continued

    4. did calibration of build plate/glass, but problem still continued

    5. continually monitored material flow right from easy of spool rotation, to print head, everything seems normal but still the material feeding stops as the tube comes out as shown in picture.

     

    the only thing happened since yesterday is now the feeding stops every 5 mins and things have got more worsen. Not sure what to do. Request your sincere guidance on this issue please @Smithy, @GregValiant, @SandervG, @gr5, @Philler, @RogueWave

     

     

    image.thumb.png.9c324ab7e405f9972d541a811d8c043a.png

    how to take the printed part out

    in UltiMaker 3D printers

    Posted

    HI All,

     

    I gave a 3D print on Ultimaker S5, kindly refer below pic wherein you will see that cura did not pick any supporting material, it is printing on PLA blue only. 

    I was just wondering how to take this print out of the glass.

     

    so far, on other prints there was initial layers of PVA natural supporting material, once the 3D print is done, I would immerse the print along with glass into the water and after few hours the parts comes out easily. but in this scenario where there is no supporting material, and main PLA blue material is sticked to the glass, now I do not know how to take the part out of the glass. 

     

    request some guidance on this

     

    @Smithy

    @SandervG

    @jbrownlee

    @GregValiant

    @gr5

     

    image.thumb.png.409b522753e75dc84d66a5bc797c2206.png

    Ultimaker S5 Flakey Printing

    in UltiMaker 3D printers

    Posted

    Even I have this problem all the time. right now just trying to store the PVA in its original packing when not in use and trying to heat it up before start of the print.

     

    but as the print are 22 to 30 hours long duration, the PVA start behaving bad after 5 to 6 hours and then it keep on destroying the print

     

     

    image.thumb.png.9b19e8f3e5921128a87b30c7ccb457fa.png

    • Like 1
    • Thanks 1

    3D stops due to issues as shown in picture

    in Improve your 3D prints

    Posted

    Hi All,

     

    after first success, I did 3D print the second project. started with same procedure, kept the PVA on the build plate which was set to 55 deg Celsius hot for 60 mins. total print duration was 14 hours 40 mins. PVA did perform great upto first 3 hrs and then started messing around. this project did need the PVA support up untill top edge. just because PVA was messing around, the final print finish quality is not so good.

     

    is there anybody who could help me in this regards (first getting a smooth finish on the print, and second making PVA to be good for whole print duration)

     

    Thanks in advance

     

    image.thumb.png.d2bcd36f216c14db680c6ed3ec44c010.png

     

    image.thumb.png.af51420efeedcbfba1ea503f378a641f.png

    How to restrict the amount of PVA on the 3D print

    in Improve your 3D prints

    Posted

    Hi All,

     

    below is the pic of the cura where I am setting up a new part to be printed. when sliced we see that thee is lot of support on vertical walls through PVA material. I just want to limit the support upon to base only, that is 10-15% from bottom, and the rest of the walls could be built without the PVA support.

     

    could someone please guide me how to do this, restrict the PVA support to bottom. PVA support not required on walls

     

     

     

    image.thumb.png.1b470ed04dd2036e28eaa2eb923b5ac1.png

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