I've got an Anycubic Predator (aka Anycubic D). I followed the official instructions and leveled my printer.
The first annoying problem I ran into is that after the auto-leveling, the level test printing shows that the printer wasn't leveled at all. I tried about 4-5 times, and finally leveled the printer (I thought I just got lucky).
The second problem that isn't solved is that the prints I get are of poor quality. Shown in figure 1 and figure 2. The cube should be 20x20x20 mm, but what I got here is 19.6(x) x 20.4(y) x 20.5(z) mm.
Does anyone have any idea about how to improve the printer's printing quality? Thanks in advance.