Another issue is that "bulge" that appears from the beginning of the notch and for a few layers.
No idea. It doesn't look like a buldge. It could be a faulty Z screw issue but if that's true it will show up on all parts, even the UM robot at the same height. I don't see any bulging on the corners - are you sure it's a buldge? Can you take a better picture?
Recommended Posts
gr5 2,224
1) overhangs - you need to get the fan going sooner and keep the heat on the bed below 60C. But above 40C. 40C should be fine. 60C should be fine also. You need zero fan for the bottom layer but you need 100% fan as soon as possible - maybe by .5mm you want 100%. Lots of details on overhangs having this issue here:
http://umforum.ultimaker.com/index.php?/topic/4094-raised-edges/
2) Ringing
You can change acceleration settings here: maintenance/advanced/motion settings
I haven't tried it on UM2 yet. There may be a trick to "saving" the changes so I would try changing to huge difference. Try 100mm/sec/sec to make sure you can really see it slowing down at each corner. If that works then try 1000 to 3000mm/sec to reduce ringing.
3) Pillowing
This is called pillowing. Search for it on this forum. This is fixed by adding more fan (do your side 2 fans work?) and also by increasing top/bottom layer thickness.
Link to post
Share on other sites