A 200W fiber coupled IR laser

[steve001]

Though burning stuff with a laser is astonishing as watching paint dry, I must say this certainly surpasses paint drying. Also, what really is impressive is the work that went into using a Cassegrain telescope as a beam expander...

 

[gazer101]

Booring, another non-portable unaffordable build... see this guy instead

 

[Commander J. Bloodmaker]

I want that 100w arc pumped laser at the end!!!