So I've never asked a question on this site before, but why can't you just simply make it so that 2D Printers have more depth and are a lot bigger *as in it having a lot more width and length of course* so that you can print stuff in 3D? And why not have the cilender shaped things that shape your print-out be made out of metal *depending on what you are printing out/ what its made out of* and have it be on the top and bottom of the, now bigger 2D Printer? *which what I'm talking about is basically like a 3D Printer, except for with all of the benefits of a 2D Printer, like for example being able to print stuff out quicker* Welp Thanks for reading this and bye bye.