why not round?

[slonken 0]

So, i bought my first 3d printer, zoo fun:-). I have done 4 prints yet. Last print was not so good. I tried to print nuts but they are not printed round as they should, the are oval. Why? and the top layer is like its not done (almost all prints has been like that). I can see trough. What is wrong?

Check my attached picture.

Thanks for all help:-)

click image upload

 

[Titus 170]

Dear Slonken,

Here you will find most troubleshooting you need, thanks to Robert

http://support.3dverkstan.se/article/23-a-visual-ultimaker-troubleshooting-guide

You are experiencing some pillowing at the top, and some irragular circles, also knows as backlash/play(probably pulleys aren't tight enough).

I can't see more from the small size(please use forum upload function).