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Laser Galvo Control via Microcontroller’s DAC

Laser Galvo Control via Microcontroller’s DAC

Author: Donald Papp / Source: Hackaday Mirror galvanometers (‘galvos’ for short) are the worky bits in a laser projector; they are capable of twisting a mirror extremely quickly and accurately. With two of them, a laser beam may be steered in X and Y to form...

Laser experiment hints at weird in-between ice

Laser experiment hints at weird in-between ice

Author: Emily Conover / Source: Science News ICING OUT An unusual form of ice is made of a solid lattice of oxygen ions (circles in this illustration) through which hydrogen ions travel freely (pink trails), like a liquid. Signs of the strange substance,...

Teardown: What’s Inside a Christmas Laser Projector?

Teardown: What’s Inside a Christmas Laser Projector?

Author: Tom Nardi / Source: Hackaday In the world of big-box retail, December 26th is a very special day. The Christmas music playing on the overhead speakers switches back to the family friendly Top 40, the store’s decorations get tossed in the compactor,...

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