The day will come when every house has one of these built in. You can then install and run an app on your home computer/tablet/smartphone, then search/browse fr

The day will come when every house has one of these built in. You can then install and run an app on your home computer/tablet/smartphone, then search/browse from hundreds of products. You choose a product, the app downloads it and sends it wirelessly to your home 3D printer, and a few minutes later out pops a new protective case for your smartphone. Or a new set of knobs for your kitchen drawers. Or a lamp for your newborn son's bedroom. When your son grows up, he may print you a mug on Father's day saying "World's #1 Dad". That you can print a gun is simply a byproduct of the fact that you can print anything, and it makes for a more compelling story than "3D printing is still improving".