Three-axis 3D printing has been with us long enough that everybody knows the limitations, but so far, adding extra axes has been very much a niche endeavor. [Daniel] at Fractal Robotics wants to ...

Now, a new company called Leap 71 is moving fast, designing a new aerospike engine and 3D printing it for testing all within a ... rockets ferrying astronauts to the stars have all had bell-shaped ...