No , i thought that also when i first heard of one . This thing came with a spindle you mounted in the lathe chuck , it had slip rings in it so you didn't tack or spark through the bearings of the lathe.
The Rifle this guy was repairing went into the spindle that had four independent jaws so it would hold just about anything supported by the tail stock on the other end .
It had a little hopper on top of the gun where he poured the Metal crystals into ,along with some powder he had to mix in with it ,Flux i think.
He could then set it to spay as many thousands of an inch he wanted it to do by the amount it sprayed, along with how hot it needed to be .
It looked like a Sparkler you would see on the 4th of July when it hit the rifle surface.
He put about 1/6th of an inch on it because some of the pits were to deep to cover .
He said you could use one of these on a table top if you didn't want it to rotate.
But after he milled the receiver back down to specs , you couldn't tell it had ever had the pits in it ,and it wasn't all that hot so it wouldn't warp on him.
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