Re: Using transit to set corner posts square!!!
[re: jml755]
07/01/08 01:12 PM
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Laying out Corners:
To lay out four cornders of a building, attach a plumb bob under the tripod head, and set the transit directly over where you have set your first corner. Sight the transit along a string (after unlocking the vertical pivot screw) until the string is lined up in the scope's crosshairs. Set the horizontal scale to 0, and then rotate the scope to exactly 90 degrees. Have a helper place a batter board along where you've sighted, and mark exactly on the board where crosshairs line up. This creates a line at an exact right angle to the string line you first sighted. From this perfect corner, you can lay out the remaining two sides of the building by measuring them. In the end, all four angles will be exactly 90 degrees. I would also double check with the 3,4,5 also. Sounds like using the transit would be quick though. I have never used on though so you tell me if doing this method would be fast.
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