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Ultimaker Community of 3D Printing Experts


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  1. So I was right in assuming that the design is partially flawed. Could you please tell me how I might solve my problem? Obviously I am one of the affected few and I have dis-assembled and re-assembled the extruder assembly more times than I wish to count. Any hack, suggestion or simply a pointer in the right direction is very much appreciated. Cheers and Regards.
  2. My ultimaker constantly lets a little bit of the molten plastic ooze in between the bowden cable and the 'internal rim' inside the peek. As a consequence, it keeps "jammin" : ( I have had to repeatedly (atleast 14 times in the last 2 days) remove the entire extrusion unit and reassemble it, just to put the bowden cable back in its place inside the peek just over the rim. Every time, while doing it, I try to maker sure there is no space in between the internal rim of the peek and the bowden cable but somehow, for every 2 print runs the molten PLA plastic manages to solidify, that the extrusion
  3. Thanks for the clarification. I wasn't sure yesterday so I went ahead and used another new peek. Thought I kept the old one(the one in the picture) just in case. I'll try to clean it and reuse it..
  4. Could someone please tell me if the peek i have is beyond salvageable or usable ? Here are some pics of it.. I feel like the left over bits of PLA plastic inside the peek at the point where the threading starts make this peek unusable. Please correct me if I'm wrong. Cheers and Regards
  5. At the moment.. the "steps per E" is about 863. And from reading other posts on the forum it seems like I can enter a flat value of 890 or I can actually allow cura to do the calibration for me. I think I will try both methods and post the results. Thanks for the suggestion. Thanks and regards.
  6. I tried using belt tensioners that was mentioned earlier. To a certain extent it did help with the tension of the belt because.. now when I try to pluck the belts I get a slightly higher pitched tone. Here is a picture of the belt tensioners... I tried printing the cube again to check to see if there was any difference in the top and bottom layers... because in the cube I printed earlier.. the top and bottom layers were of much much lower quality than the sides.. This time though, I used the skin setting and layer height at 0.1mm to get a much finer finish. The cube that I got this time,
  7. What is a belt tensioner? And could you please tell me what you mean by retraction? Is it possible to increase the tension on the X, Y belts without using a belt tensioner? Because I don't think I have it.
  8. Yes, it is PLA plastic. Thank you very much to all of you that helped. With your help I managed to print the cube. I followed the suggestions and was able to get the companion cube from portal printed. I adjusted the platform height and loosened the black screw a little on the extruder drive so as not to flatten the PLA plastic and adjusted the temperature at 230 C. Finally..this is what I got. I am quite happy. It is quite close to the original... But one question though. Why is the quality of the print not uniform throughout the surface of the cube. For example the picture above is a pic
  9. By visible bite marks.. is this what you mean? Problem 1 Could someone please tell me if my extruder drive is in the right configuration for a printing operation? Here is what I normally have during a print run.. As can be seen, the screw knob is screwed all the way in as you had mentioned. But does the black lever above the screw knob need to be downwards or upwards? In the picture above it is downwards. But I am not sure if that is the right way to run a print job. Either way, could someone please tell me what is the purpose of the black screw knob and the black lever that is situated
  10. Thank you very much for the pointers. I'll try the suggestions and get back.
  11. This is my first time assembling an Ultimaker. I am very very new to all this. Never 3D printed a thing in my life before. It's just the excitement that got me this far. Could someone please tell me what I'm doing wrong? I do not understand the combination of factors that lead to a good print. Any information in the right direction is very much appreciated. I tried to print a small giraffe. This is the STL of what I am trying to print. . I stopped the print in 5 minutes because this is what I got... Here are some facts [*:tbbn5anj]I am using Cura version 12.07 [*:tbbn5anj]I am usi
  12. Could you please tell me what you mean when you say "make sure your rods are nice and square". By "square" do you mean that the X and Y rods must be absolutely perpendicular to each other?
  13. I am a first time assembler of ultimaker. and i have thoroughly enjoyed the build process all the way till the part where i have to put in the X, Y axes rods and their associated belts. The problem is.. I am really not sure how freely or rigidly the extruder head must be able to move... right now.. i have assembled it in such a way that that the extruder head moves.. but the movement is a little tight for a typical human. Me in this case. Can someone please give me some rule of thumb, as to how freely the extruder head must be able to move over the X and Y axis rods..when the machine is unpo
  14. I went ahead and ordered it. Now patiently waiting to lay my hands on it. : ) Thanks to everyone for allaying my fears about whether I might be able to build it or not. I feel a bit more confident after I read your replies. So I went ahead to order it. Cheers.
  15. Hi. I am new to the world of 3D printing. Yet I've been excited ever since I heard about it. And now I am looking into getting one myself. I've zeroed in on the Ultimake after reading various articles and posts. I have an IT background. So I am mostly into programming. Have dabbled with the arduino a little bit and have some experience writing assembly code on PIC microcontrollers. I would like to know if someone with my kind of background would be able to assemble the ultimaker merely from the instructions on the ultimaker wiki? Thanks.
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