A View from Tim Maly
Why 3-D Printing Isn't Like Virtual Reality
Before you dismiss it as a fad, consider the evolution of 2-D printing.
I’d like to sneak up on the question of 3-D printing by way of boring old 2-D printing.
Typography used to be heavy industry. The companies that make typefaces are still called foundries because there was a time when letters were made of metal. When you got enough of them together to reliably set a whole book or whatever, you had a serious amount of hardware on your hands. Fonts were forged. Picking a new one was a large capital investment. Today, fonts are a thing that you pick from a drop-down menu and printers are things in your home that can render just about any typeface you can imagine.
We went from massive metal fonts and centralized presses to the current desktop regime by degrees. In the early days of desktop printing, we had the dot-matrix. The deal was simple: “We give you one crappy font and you need specialized paper but you can do this at home”. It wasn’t useful for much, but it was useful for some things, and used frequently enough that it was worth developing improvements.
Today, it’s reasonable for most people to have a pile of paper and a printer that cost them next to nothing and for businesses to have stockrooms laden with the raw material of documents. Print shops have had to stay a step ahead, selling convenience, their ability to print nicer things on bigger formats, or the economics of scale.
I want you to bear this in mind, when you consider Chris Mims’ argument that the idea that 3-D printing will be a mature technology “on any reasonable time scale” is absurd.
Chris is right that 3-D printing as it stands isn’t a replacement for the contemporary industrial supply chain. It’s clearly a transitional technology. The materials suck. The resolution is terrible. The objects are fragile. You can’t recycle the stuff.
Maybe early home 3-D printers use only plastic and can only make objects that fall within certain performance restrictions. Maybe it starts out as, like, jewelry, the latest model toys, and parts for Jay Leno’s car. But there’s no way that lasts. People are already working on the problem. They are working especially hard on the materials problem.
At the same time, it’s not hard to imagine a convergence from the other direction. Some materials and formats will fall out of favor because they are hard to make rapidly. Think of how most documents are 8.5×11 (or A4) these days. It’s just not worth the hassle of wrangling dozens of paper formats.
It’s also important not to confuse 3-D printing & desktop-class fabrication. These aren’t the same thing. There is more to desktop manufacturing than 3-D printers. A well-appointed contemporary maker workshop has working CNC mills, lathes, and laser cutters. A well-appointed design studio has the tools to make and finish prototypes that look very nice indeed. Aside from the 3-D printer, none of these tools are terribly science-fictional; they’re well-established technologies that happen to be getting cheaper from year to year.
Something interesting happens when the cost of tooling-up falls. There comes a point where your production runs are small enough that the economies of scale that justify container ships from China stop working. There comes a point where making new things isn’t a capital investment but simply a marginal one. Fab shops are already popping up, just like print shops did.