Warp Test for Print Bed Adhesion

This model (actually set of three models) is a torture test to see if you can print it without any warping or lifting of the ends. I'll bet you can't.

I have not found a single FDM 3D printer that can print this model in ABS without warping and still allow a clean release of the finished print, unless my new printing surface is installed.

The thing that makes this model such a bear to print is the fact that it has only a 1/8" wide contact patch at the bottom of the V-shaped body. This tiny contact patch does not allow very much adhesion, so the forces of the contracting cooling plastic from each successive layer wants to pull the ends up off the print bed, causing warping.

There are three versions of this model as follows: 1.) Completely solid, 2.) A hollow shell, and 3.) A hollow shell with a vertical partition in the center to impart even more warping force on the ends.

This is the hardest thing that I have ever tried to print without having the ends lift up and war