What does this mean? The clearest example is the one-piece door handle and latch, 3D printed on an Ultimaker 2 with pink Ninjaflex. It is fully functional but has no moving parts (besides itself ...

For example, 3D-printing a door handle and latch isn’t impossible, but it would require you to replicate every last moving part and then assemble them all when complete—a time consuming process.

This is not the first 3D printed door hardware we’ve seen. Check out this innovative latch printed as a single piece and here’s the skinny on making flexible objects yourself.

3D printers may have ... turning the plastic door handle resulted in the latch retracting, without requiring a single moving part to be assembled once printing was complete. Building a working ...