45mm x 45mm square used for ripple/ring testing performed as part of 3DPrintBoard thread http://3dprintboard.com/showthread.php?9056-Marlin-Motion-Related-Configuration-h-Settings-for-MakerFarm-i3v

In addition to sharp corners, the test object includes a variety of holes, notches, dimples and recesses on all four sides for the purpose of evaluating the effect printer or slicer settings can have on trailing edge ripple or ring.

The 45mm perimeter size is intended to allow the printer to reach maximum configured speed before beginning to decelerate for the far end. Wall thickness is 1.75mm
Note that the depth of the various dimples and recesses likely varies.

No gcode is provided since it would typically be sliced using different slicer settings.

Configure number of perimeters and extrusion width as required to prevent use of any zig zag or other non-solid infill that may contribute it's own artifact on the print results.