mouser Seems complicated and dangerous. I remember seeing a mechanized vehicle that welded rails using magnetic field?
Oscar Wildcat I couldn't think of a simpler. more rugged, and more cost effective solution than this. This is one of those rare violations of Murphys law where everything goes right to make it trivial to melt kilos of iron in the middle of nowhere with a match and a drum of powder.
Jet Bin Fever Holy shit this video makes me want to go the gym. These guys are so burly.