Originally Posted by Minte

This is a working fullscale prototype of a highspeed pump impellor one of our engineers made today on the 3d printer. All we had to do was run a reamer through the hole to size it precisely. They set it on a test motor and spun it at nearly 12,000 rpms and it didn't fly apart. This is really impressive to do something like this. It took 6 hours to print it in comparison to several real challenging days in the tool room.