> > The plates are good and heavy duty. They are 1/2" thick with six Nelson studs. Strength wise they are all there they just need to be placed in the right spot.
>
> My mistake, I thought they were flat plates that you were going to be welding to.
They are flat on top to weld to but have six studs sticking out the bottom. 
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Using A Tape Is Too Time Consuming For 6 Points?
> 3) The measurements / marks will need to be placed and removed several times. I need initial marks to know where to dig the holes. If it is a pin or strings crossing they will need to be removed so I can dig and build forms and then pour concrete. I will then need to be able to quickly relocate these points once the concrete has been poured to set the plates.
Isn't that what Batter Boards are for?
Using A Tape Is Too Time Consuming For 6 Points?
Batter Boards - Good idea.
Personally I think it would be a good time to meet the neighbors and ask for some help....just like the old days.
Using A Tape Is Too Time Consuming For 6 Points?
I have found that a screwdriver, through the tape handle, is quite capable of handling the dumb end of the tape.
Using A Tape Is Too Time Consuming For 6 Points?
Exactly, batten boards to the rescue.
BTW "put all cross boards at the same elevation for best results"
:gammon: