Thanks for the reply.
All brands of printers you have this problem or just Ultimaker?
UM2 have a similar problem?
Is there any way / at slow speed, lower temperature or second fan / to fix the problem because I have several colors and do not know what to do?
Regards
Peter
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illuminarti 18
No, that's what ABS does. It contracts much more than PLA when it cools, and that can lead to these sorts of problem. You really need a heated bed to get ABS to stick without curling and lifting off the bed - and even then ABS can be tricky to print, and needs careful control over temperature and cooling.
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