Originally Posted by
birdhandler
any idea why the welding trick works?
The heat expands the shell, but because it's constrained by the headstock most of that expansion becomes internal shear, within the shell itself.
When the shell cools the contraction is unconstrained, so it shrinks more than it expanded. wolla.
Actually doesn't need to be an arc welder, any method of heating the shell (quickly) and not the headstock will work. It's just that a stick is easy to aim and control in there.
Go soothingly on the grease mud, as there lurks the skid demon
Bookmarks