I am a new user of Ultimaker 3 extended for prototyping in my engineering activity. Unfortunately with the last parts which I printed, I remarked that the quality is decreased: I found that the first layer is not uniform (see the 1st pic) some dimensions are not accurate (shift of 0.3 or 0.4 mm) and also there are some points where material is accumulated (see pic. 2)
I want you to know that I am using Cura 3.2.0 with recommended print setup, 1st extruder is PLA with print core AA 0.4. the second extruder for support is PVA BB0.4
Thanks in advance for advices.