Are you just verifying the top is in the right spot?

Interesting thread... what is this application for? Confirming that the steel will work or..?

ken, post: 330950, member: 1548 wrote: Sounds like you've taught yourself some good methods. I particularly agree with you snapping intersections, tha...

I know this is an old thread but... do the tower cranes shake the building that much to make a difference?

Ha, im glad to here, I have been lurking a couple threads already, when i get a chance i will definitely pick some brains for ideas.