It’s why desktop 3D printers are such a powerful tool, and why this scalable plotter from the [Lost Projects Office] is so appealing. You just print out ... to move the pen back and forth.

If we told you somebody built a 3D printed go-kart, you’d expect to see ... eventually fused together into 3D trusses using the 3D pen. The trusses are then mounted to the RC car chassis ...