Iron Man’s laser is no longer just science fiction! We engineered a real high-powered fiber laser capable of slicing through steel like butter. Is this the first step toward real Iron Man technology?

[Stephen Hawes] has been trying fiber lasers to create PCBs ... FR4 uses epoxy which will probably produce some toxic fumes under the laser.

We suspect that [Les Wright] has pew-pewed his way through more than a few laser projects in his lab, including his latest experiments with fiber coupling of lasers. The video below is chock full ...