[Don Robinson]

This series shows how I locate all the bolsters to match with each other as I spot weld the bolsters to the liners.

The aluminum piece has a slot sawed into it wide enough to accept two liners at once.

After the first bolster is welded I place the liner in the marking handpiece with two pins thru the 2 liners to keep them aligned with each other. Then I scribe a line across the next liner to be welded to show exactly where its bolster should be located.

After the next liner is marked I carefully place its bolster so that it just comes up to the scribed line, clamp the bolster and liner using a vise grip, and weld it together.

This repeats. Place the two liners together in the hand piece, scribe, remove and clamp, and weld that piece, and so on.