Harry Bloomfield wrote:


Depending upon the accuracy needed, it needs to be laid out on a good
flat surface and either clamped or weighted down so it doesn't move.
Then make several tack welds around the various bits, before progressing
on to the full weld runs.



I had wondered about making accurate 90 deg corner plates at home and
taking those to site to use almost jig-like to ensure accuracy. Might
that work?

Richard