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sinar

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  1. Thanks! I overlooked that option.
  2. After a long break of using my Ultimaker 1 I'm now getting back into 3D printing again. It's nice to see that the Cura software has been improved a lot since I last used it. However, one feature I can't find is how to manually heat-up my print heads. I've always used this feature to change filaments and also to make sure there's enough plastic in the print-head before I start a print. Now there seems to be no way to do this, or am I missing something? How should I change filaments without starting up a print and then cancelling it as soon as the print head is heated up? Most of my first prints fail because there is not enough plastic being fed at first (The print-head's probably empty). Also it was nice to be able to manually control the steppers for maintenance, especially for moving the Z-stage because that one is very tedious to move by hand.
  3. I had similar problems, but they were caused by a bowden tube with too small inner diameter. Because the diameter of filament varies over its length, the filament would get stuck during printing. You can try to disconnect the tube and see if you can push filament through it by hand. It should not require much force. If you can measure the inner diameter, it should be at least 3.1 mm. My problem was solved by contacting ultimaker support. They sent me a new tube.
  4. I received my replacement part yesterday and it's all working fine now There was a visible difference between the inner diameter of the old and the new bowden tube. The old one I measured at about 2.9 mm and the new one at 3.5mm.
  5. I have the same issue, also with a brand new ultimaker. (Check this topic: http://forum.ultimaker.com/viewtopic.php?f=7&t=902) I've contacted ultimaker support and they are sending me a new bowden tube. I suggest you do the same.
  6. Hi all, I'm also having problems with the friction in the bowden tube. There is a lot of friction if I manually push in the filament, and after about 20 cm, it becomes impossible to push it in further. This is the case with 6 out of 7 different plastic filament I tried, including the silver-grey filament that was supplied with the ultimaker. The only one that worked was transparent blue filament, but even that one required quite a bit of force. This is with a brand new ultimaker I just constructed this weekend. Perhaps the bowden tubes supplied with new ultimakers are bad? I'm now also looking to get some new PTFE tubing with a bigger inner diameter. Where did you find yours?
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