This is caused by the same mechanism as curling and delamination; the ABS shrinking as it cools pulls the layer inward and out of alignment with where it should be. The reason it causes it to curl upward rather than split is that the layer below is still just a little soft from having been printed so recently. If they are large pieces, try printing more slowly, if the're small, try printing a "cooling tower". It's a narrow, simple piece the same height of your main print way off on the opposite corner of the print bed to give the print head some time off of your print after each layer.

Alternately, if you don't want to throw away a tower, make small prints in batches, which you space at the far corners of the print bed to fill the same function.

It also looks like you are printing in a very high layer height, Overhangs generally improve far above the usual feature when you print at a finer z-axis resolution.

Also, your problems stem from material shrinkage, and I've not used PrintME3D's filament, so it might be a problem there too.