First try I had heavy warping and stopped print at first layers. Second try little warp and I could almost finish it, stopped because I forgot my printers Y axis is inverted But I could see that the openings almost fit, just the mic and audio out jacks are about 1mm off. I'll try to reduce the usb ports hole width a little as they seem to be a bit too wide. Did it fit perfectly for you? I can't tell you if its right or not, because I don't know if my printer is calibrated enough. I have not printed the top part yet!