Apple recently allowed Backchannel access to the top secret Input Design Lab where all of their new keyboard, trackpad, and mouse prototypes are tested and perfected. Among the variety of sensors, robots designed to click and tap hardware and customized testing machinery they found a bank of 3D printers that play an important role in the testing process. The collection of MakerBot Replicators and Ultimakers are primarily used to 3D print custom designed structures and devices that the lab team can use to hold Apple prototypes at certain angles or put specific pressure on specific parts. You can read more about Apple secret test lab over on 3DPrint.com: http://3dprint.com/100804/3d-printin...pple-test-lab/