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Vanessa Cutler, an artist from the UK, uses a waterjet to cut glass for her sculptural pieces.

 

As many of you know, robotics is one of my hobbies. So I was pretty pleased to find out that the Spring Flamingo, one of the first really good dynamically stable walking robots, has body panels made with a waterjet.

Lamina Design has software that lets you turn interesting 3D designs made in Rhino or other CAD software into wonderful 3D objects that can be made on a waterjet.

 

Some students at MIT used MIT's waterjet to create a flexible, interactive surface. The surface can be moved along the same dimension as the cut.

 

Big Blue Saw currently features waterjet cutting for manufacturing operations. Waterjets are extremely flexible tools, but can't cut slots or pockets like a milling machine. But you can use waterjet cut parts to make real 3D objects. It takes some creative design, but it can be done. The Big Blue Saw RAZR cradle is one example of how this can be done. I also recently found an interesting article which details the "Hole and Tab Method" for making 3D parts with a waterjet. Link.