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dpgtaylor

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Everything posted by dpgtaylor

  1. Thanks for your reply. What is the small modification to improve this that you mentioned? Also is there a suggested way to clean the threads of the olsson block and nozzle? I have ordered an official ultimaker nozzle and want to make sure it is going into a clean thread in the heat block. Thanks
  2. Hi thanks Geert_2 your advice is very helpful. I have double checked the fan and it carries on running at full speed. I think the issue lies with the nozzle more than anything. Before trying anymore cold pulls I disassembled the print head and looked at the olsson block. There is a large amount of burnt black residue (as pictured) on the screw threads of both components. The coupler is completely fine as it is new. There is a large build up of residue inside the nozzle with some fairly big parts in there. I wonder if it is worth trying to clear the nozzle as it appears to be in a pretty bad state inside, or just ordering a new one? Is it normal for the thread of both components to become so blackened? I have attached some photos, although it is difficult to get a clear shot inside the nozzle using just a phone camera.
  3. Thanks - I have dropped the temperature when doing the cold pulls and its giving me a better looking tip. I performed 11 cold pulls and tried to perform a print - it completed the print but under extrusion meant it snapped and was messy. I tried to print again and it was massively under extruding. I have performed another 10 cold pulls and this is what the tip is looking like. It shouldn't take so many pulls + it shouldn't look this bad after 10. Its not smooth at all - I know a new nozzle would solve this but not keen to just buy another and need the printer today. Any suggestions for cleaning it out properly? Im worried there is some abs in there from prints I did ages ago - or just some really stubborn PLA
  4. I had recently been printing a run of the same 3D print file - and need to print a large amount more for a deadline. Unfortunately the printer stopped extruding part way through one of the prints. I went on to unblock the nozzle but noticed the coupler was completely blocked (as pictured). I then ordered a replacement coupler and installed it. I then proceeded to carry out 11 atomic pulls as pictured until it came out clear. This seemed to work and the first print I did yesterday since the atomic pulls came out clear. I removed the print and went to print the file again, when I came back to it the print had failed (as pictured and there was a blob of pla on the outside of the nozzle. I have only used pla on this nozzle. Any suggestions as I really want to make this deadline, cheers.
  5. I emailed 3D Gbire and they got back pretty quickly. They stock all original ultimaker parts so not the quieter fans, but means I can replace the printhead fan. It came to £8.66 + Vat + shipping so was £17.82 when it was all added up.
  6. Hi, One of the printhead fans (on the left) of my 3D printer has stopped working. I have checked the wiring and all seems to be fine. Has anyone found a UK supplier for a replacement, it seems impossible. Also I have read on other posts that you can replace the heat sink fan with a quieter model, but again I am struggling to find a UK supplier. All the ultimaker recommended sites don't sell replacement fans it would appear Thanks
  7. Hi, I have been using my ultimaker 2 (recently purchased) with filamentive white PLA and its been printing fine with a few minor teething issues. I have managed to solve all of these and it was printing fine again. I did use white abs at the start but that was several months ago and I have printed perfectly fine since then. However, the nozzle now appears to be blocked and the atomic method just refuses to solve this issue, its incredibly frustrating as I really need the printer working as I am in my final year as an Architecture undergrad and everything has to be done from home at the minute. Do you have any suggestions as how to clear the nozzle? When i heat it up to 260 it does come through, but not as smoothly and evenly as possible. I have repeated the atomic test many times but with no result I have a new roll of filament which I can use, but I am reluctant to start it as I have a third of the other spool left. I have attached photos of the atomic pull (which doesn't look healthy), any help would be greatly appreciated. Cheers
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