About this 3D model

When I printed the vexaae's original GPIO connector with a makerbot replicator 2 (PLA filament) the holes would get filled in and some sides failed to print. So I took the blender file he provided and modified it until it worked on my Makerbot Replicator 2. Essentially all I did was make the holes a little bigger and thickened all 4 sides.