Jump to content

NBull

Dormant
  • Posts

    155
  • Joined

  • Last visited

  • Days Won

    2

Posts posted by NBull

  1. I agree with Smithy the center position is most the times the best position. if using a realy hard filament more tension is somtimes needed. and if using fragial PVA less. but yes 99% of the time stick to 1/2 tension.

     

    If you havn't don it already I would recommend opening the feeder and cleaning the inside. When the feeder have grinded the filament a couple of times a lot of debris can accumulate in the "box" and on the tooth wheel making it to slippery.

    ps. rember to losen the feeder befor opening, so the spring don't pop out 🙂

     

    You may aslo want to check if you can frealy push PLA through the core. the core can be clean but still have to much resistance. 

     

    Also check the bowden tube. it might have a bend making to much resistance or be damaged on the inside. Take some filament and try pushing it through the tube to see if theres a spot whit more resistance.

     

    As Smithy mentioned it can also be your print settings, if trying to push too much filament out at to low a temperature.

    • Thanks 1
  2. I would disconnect the bowden at the print head and some of the wire clips. so you can pull the bowden off the filament piece. then manually heat the printhead til the filament can be pulled out. Assuming theres still a bit of filament left over the print head when the bowden is removed. so you have something to pull on.

     

    (Disclaimer, its a long time since i have worked with the u2, so there might be a better way to do it)

     

    ultimaker-2-3d-printer.jpg.fcb8abd91eb0a8882a6a14e55b1b70bd.jpg

  3. From the picture I'm pretty sure it's you feeder that's grinding the filament til it breaks. as you also mention youself, its most likely that its your feeder tension thats to high. whats the posision at now? It can be other things too.

     

    If using a polybox there can be to mutch friktion for the feeder to pull the filament freely. try and print without, and see it it helps.

     

    There can be a small plug in the print head making too mutch resistance. try and make hot pull, cold pull til its clean. or change to another core.

     

    Your Pla and Pva can be moist, making it to soft. try and dry it. 🙂

     

    • Like 1
  4. When using a wider spool, that doesn't fit in the two grooves on the back holder. I would use an external hold like you do with the white spool. probably the best way to prevent this.

     

    If you "need" to use the back holder I would put som type of stop (clamp) on the back holder tube so that the spool cant move away from the printer if that makes sense.

     

    Note: When using two external holders you are better off crossing them on the back so that the spool on the left goes to the right feeder. this will help the filament sensor give more precise readings. do to the angle/direction of the filament.

  5. 16 hours ago, waldo said:

    @NBull, I don't seem to be able to download that profile - can you may be zip it before attaching it?

     

    Hej Waldo. Heres both a zipped and normal.

     

    Accuracy_04_Nozzle_v2_Z-hop.curaprofile

    Accuracy_04_Nozzle_v2_Z-hop.curaprofile.zip

    Edit: Removed () from Curaprofile name

     

    I don't know if this is your problem but sometimes when i download Cura projects or Curaprofiles from the forum. The file name get mixet up so it looks something like this. 

     

    "1853372799_Accuracy04Nozzlev2_curaprofile.a6584862212dee6b33eded1a52152f48"

     

    If you remove the part from after curaprofile and alter the "_" in from of curaprofile to "." it will work, the numbers in front of Accuracy can also be removed.  

     

    16 hours ago, waldo said:

    what were your printing times?

     

    1 hour and 20 minutes. it's not fast, but to me it would be an acceptable time for an object at this size.

     

    If I needed to do it faster, I would probably up the print speed from 30 to 40 and set layer height to 0.2 then it will be under and hour in print time.

     

  6. First print (on the left) I forgot to turn off the brim. that's why the text is smudge

     

    DSC_2969.thumb.jpg.cda298ca6c2c36e673b83f72d3e868ab.jpg

    DSC_2967.thumb.jpg.ff96a48bddb096d2b384208f56ab2749.jpg

     

     

    Second print (the on on the right) brim is off, and "combing mode" set to "not in skin" z hop when retracted is on.  

     

    DSC_2971.thumb.jpg.5d088dee180c27c4adc80721d060eec2.jpg

    DSC_2966.thumb.jpg.2618d89b97f6632d4305ae66c3c7acf4.jpg

    DSC_2977.thumb.jpg.30fa2d6f8acd2571a8e84f948b8c0dc9.jpg

     

    I have put up the pictures unaltered, not sure if the forum allows this big fil sizes if not Ill changes them. (Edit: It doesn't, it automatic down scales it) 

     

    Hope you can use them.

     

  7. Hej FablabCardiff

     

    You can try this profile if you want, its my "default" profile for the s5. it's aimed for medium size prints so you might have to tweek it for bigger prints if you think it takes to long. But it is in general a slow printing profile.

     

    And as Smithy mentioned 60-65 mm/s is way to fast if you want a nice surface finish. I personally never go over 40 mm/s even on "fast" prints.

     

    locking at you pictures I think you also might need to check you axel alignment. 

     

    Accuracy 0.4 Nozzle v2.curaprofile

  8. PVA can get too dry, and will make it brittle. but I have not heard of a dessicant bag casing it. Thats more likely to happen when using a dehydrator or oven.

     

    Sunlight can also make it brittle btw.

     

    To save the spole, I don't know. best thing would probably be to stor it in a terrarium where you can monitor and adjust the humidity precisely. 

     

    I would personally put it in a big air tight container 50-60L whit a humidity monitor and try to keep it at 20% just opening the lid to adjust if it goes below. or put som drops of water in the container if its way to low. My theory is that is better to raise the humidity slowly.

  9. Hej Roldy

     

    It's because the model is not optimised for 3D printing. There's a lot of fine details in the .stl that are not printed. eg. the walls under the hatch is to thin for Cura to print them. and this messes up the support.

    if you set the nozzle to 0.3 they will print and you will get the support.

     

    please note that theres still a lot of the other walls that ar not printed because they are to thin.

     

    I am not sure if theres a setting in Cura that will let you print everything thing whit a minimum 1 wall thickness.

     

    Edit:

    Sorry I didn't notice that you have the thin walls printing. are you upscaling the model?

    Can you try and save as a Cura project instead of the .3mf so I can see the settings.

  10. As far as i know it's not possible to just open the profiles as text. but it might have changed. otherwise there are some tips in this old thread.

     

    Ps. when opening the .curaprofiles in Cura all the settings should be imported even though you can see them in the text file.

     

     

  11. Whether climate change is natural or man made. I will not comment on, as it depends largely on what scientist you ask.

     

    Regarding recycling, I personally believe that we as human beings should strive to recycle the materials we can. not necessarily because of the climate, but because I am against, the "use and throw away" culture.

     

    3 hours ago, geert_2 said:

    CO2 is the bubbles in sparkling water, cola and beer. It is the bubbles in bread. It improves the working of our stomach. And it is the main food for plants. It is a life gas. No poison at all.

     

    Saying that CO2 is a "life gas. No poison at all" is wrong.

    (CO2) is natural and harmless in small quantities. But if you inhale too much, it "will" kill you. 

  12. 19 hours ago, gr5 said:

    You should only need to align 2 of the 4 pulleys as fbrc8-erin is hinting at.  It can be 2 diagonal ones, or two across from each other.

    I was thinking that i was just move the problem to the opposite side doing this. But it is correct i only need to align the wheel on one side. So its just me overthinking the problem. Blinded by the fact that I couldn't make both sides fit at the same time.

     

    A side note, are there any need to check the small screw holding the wheel on the steeper? I cant see any way to do this whit out removing the steeper completely. Which i would prefer not doing.

    20191115_132323.thumb.jpg.85f3920fa96b94e2788c08a88a23ead2.jpg

     

  13. 1 hour ago, tinkergnome said:

     

    There's no generally answer to this question. Regulations can be very different in every location of the world.
    I guess you have to ask your local waste management company. Of course one still needs to know the exact material first...

     

    A lot of places/countries use the seven numbers categorisation. even though it's not official a standard yet. 

     

     

    Plastic-Recycling-chart-1.thumb.jpg.ec945640d2fe436b091ab8c78cc48b1c.jpg

     

  14.  

    12 hours ago, geert_2 said:

    Apart from that: CO2 is not a poison gas, on the contrary: it is the most important life-gas on earth: it is food for plants, and it is the base of all life. No CO2 means no life. Today there is not enough CO2 in the atmosphere to make plants grow well: they need at least 3x more CO2, but preferably 10x more (that would still be only between 0.1 and 0.4%). This has been tested in scientific experiments. Today concentration is 0.03% and plants are in continuous "CO2-hunger": below 0.02% they all die. So, don't feel bad for producing CO2 and making plants grow. This is basic scientific knowledge, which I got in highschool (around age 15...18y). But of course the climate-kiddies today don't go to school, and they are too lazy (and too arrogant) to study and to inform themself. And the press is just a propaganda-channel of its owners, not a thruth-channel, so you won't read this in there. Also see my text, via the link a few posts above this one, for more info.

     

    I would really like to know where you find that scientific experiment. I agree that the press isn't the most trustworthy source of knowledge.

     

    And I will not disagree that plants need CO2 to grow. But claim that we can solve all our problems by emitting more CO2 I find hard to agree on.

    • Like 4
  15. Hi im trying to check align on the axles using the alignment pins. (have been done before) but the right side x axles the one over the camera i cant get in a position where i can get to the screw. its almost like it have jumped a tooth on the wheel. but the the printer wassent that off alignment. so dont think it have skipped a tooth.

     

    So big question is if i should skip a tooth to get to the screw. i can also make a new alignment pin where the groves have ben shifted half a spot, but then i'll probably get the same problem on the other side. so any suggestions?

×
×
  • Create New...