Customized version of https://www.thingiverse.com/thing:43406

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=43406

Using the following options:

_1_numCellsX = 4
_2_numCellsY = 4
_3_cellSizeX = 12
_4_cellSizeY = 12
_5_cellHeight = 12
_6_externalRounding = 4
_7_sidewall = 0.8
_8_bottomThickness = 1.2
_9_resolution = 30