shrink/warp printing multiple parts simultaneously

[airscapes]

Another thing that can cause issues is a bed that is not level and a Z offset that is incorrect and or incorrect extrusion multipier.
To check use the attached model assuming 3.5 mm nozzle and .4mm extrusion width.
Should measure 2.98-3.02 mm tall, shoot from the 2.98. Set your first layer height in S3D to 100% if it is not already.
Wall thickness should be .82 to .84 thick if extrusion multiplier is correct.
Next print them 3 across the bead in 3 or 4 rows .. then measure them to check bed level.
The quick start app sucks.. I have never had much luck and use a dial indicator with a mount I made that gets installed where the hot end is..
You may want to check out the makergear forum as well.. I have posted one of the methods used to set z offset using firmware M206 Zxx.xx setting