Building a 3D printer is easy. Getting the details right to build a great 3D printer is hard, as this is where most companies fail. Why?

Because 3d printers are becoming cheap commodities. Those little details cost money and most manufacturers aren’t willing to take the profit hit to do anything more than the bare minimum. It’s only ever going to get worse at the lower end of the cost spectrum and while higher end printers may get somewhat cheaper, most people won’t be able to afford that level of care. The majority of consumer level devices will continue to be just good enough to not get returned but always lacking in fit and finish.