quote:Originally posted by PanteraDoug:
Even if you are successful, you are talking about weld thicknesses measured in thousands of an inch.
No actually the weld is through. Penetration is about the size of the "scab" or individual knob but it penetrates all the way through. With it set up right the melted metal becomes the same thicknes except scabbed as you say. there is actually a "mini scab" on the back side I don't have a photo of. You are correct it takes carefull grinding but is not that hard with good technique. To say penetration is in thousandths is really to not understand the technique.