Setting out - String lines

[mitzimad]

or cut the top off the datum :;):
the best one is when the bison floors come and they dont fit,
seen that happen, and heads rolled that day
LLL

bit of topic but forgive me im a plumber best story like this is about 20 years ago we were working on one of the first computer drawn building in central london all steel framed and each steel was predrilled for every service we were running 3 inch steel through our hole and meet a team of electricians running a large cable comming the other way
it turned out that some drawings were mirrow image due to the way they had been scanned and printed i think half the drawing office was sacked that day

[rab1]

trust me nothing has changed, the old way was ductwork first,then the heating/plumbing pipework and then the sparks. Now thanks to co-ordination drgs nothing fits as it should.