Building My Own 3D Printer - MISSION 1

I have ordered almost all of the parts required to build my second 3D printer from Chinese suppliers. Aside from being much cheaper, I think they might be very low quality. But I am interested to learn if good design and software settings can make up and to see if the part are even as low quality as the prices seem to hint at. If this is possible in any significant way, then I could say there is a future in very cheap but fully functional 3D printers.