YouTube removes criticism of dangerous fractal wood burning, but leaves up tips
Someone made a commercial fractal wood burning device years ago. It had very long handled probes (1-2 ft.) and a pedal for switching on the power (there might have been a main power switch inline on the device itself.) It had a dial to let you crank up the amperage. I think someone did get hurt using it. Reputable art/woodworking events and people do not allow or use fractal wood burning because the inherent risk is so high.