3D printing is gaining in popularity and brings with it the promise of making your own physical stuff at home out of plastic. The problem is, it’s still quite expensive to get your own 3D printer at home, and constructing one from a kit can be quite complex and time consuming. Examples of 3D printers already available to purchase and build include the Makerbot ($1,299), the Ultimaker ($1,600), and the Pruse Mendel ($825)