Adding a $300 lens to the Peachy Printer would still bring the total cost to less than half of the price of the typical extrusion-based 3D printer, most of whic

Adding a $300 lens to the Peachy Printer would still bring the total cost to less than half of the price of the typical extrusion-based 3D printer, most of which have a fixed build area of no more than about 8"x8". One of their milestone goals is to use the Peachy Printer to build a usable sixteen-foot single-piece canoe, and actually test it out on a lake. If they can manage that, even if they have to install some specialized optics to make it work, it will be extremely impressive, and demonstrate capabilities that far exceed those of more expensive 3D printers. I think the biggest weakness of the Peachy Printer is the specialized consumables it requires. The resin solution it uses as a build material is going to be considerably more expensive, harder to obtain, and more difficult to store in volume than the spools of cheap ABS or PLA used by more conventional 3D printers.