checking chassis before welding

[alga]

Originally Posted by Shorty

This might be a bit of a stupid question but... Is there any way to ensure that all tubes are correct and there is no distortion before fully welding.
Obviously I have been checking all dimensions and angles against the book but would just like to be sure as I'm not too far from being ready to weld.

You could check that the various diagonals match. But what if they don't? Would you scrap the chassis and start a new one? Whack it with a large hammer?