Just a heads up that HF has there spot welder on sale for $149.00...$70.00 off!!!!
Toten Kopf said:yosuthnmasa.......
The dark marks are from heat, in the center of those marks (you can enlarge the picture and see a closer shot of the weld) you get a little melt as the tongs weld the lower rail and the receiver together.
LOL..........I thought that copper was used for heat transfer, but hey, it might be so it won't stick to the steel. I really don't know.
Also, I think I used the magwell opening to do the most forward rail welds. Then swithched to the top of the receiver to finish the rest of the welds.
No, the only holes in the RH lower rail are for the center support rivet and the hammer pin. On the LH lower rail (ejector) the only hole is for the center support.yosuthnmasa said:So, you place the tip in the holes drilled in the lower rails, while the other tip is on the outside? I thought I remember some guys placing the tip in the corner of the rail and side of the receiver. I copied your picture from the other thread.