Originally Posted by
HLF Ordnance
My use for the RAM EDM would be to square up a radius as oppose to using a modified press and broach or sometimes a hand file.
Some way to broach would be nice, I don't really like the idea of using the Z axis to broach though, Hoss did something like .001" removal per pass at 1" deep I think, that's 250 x 2 x 1 = 500 1" Z movements just to get one single 1/4" x 1/4" x 1" deep internal keyway broached.
But if you had something that hooked up to the spindle nose (like the speeder), had it's own little tool holder that was centered with the actual spindle and was run by the power of the rotating spindle that converted rotary motion into sawing motion you could saw (or just single point push cut) a keyway into something.
BlueFin CNC LLC
Southern Oregon