17th January 2009, 08:44 PM
"Planning frames...offset
Its all down to
a)how good you are
b)what you are doing"
I couldn't agree more,i've often employed both methods when drawing up the same plan.
Some of the commonest mistakes i've seen when planning are
1)when laying out a tape between grid pegs not having it in a straight line!causing distorted measurements to be used, and on a large plan this can mean a lot of difference as to where features actually are located.
2)when using the offset method measuring from the tape to the feature,it should always be from feature to tape to get the right angle correct.
3) offsetting should never be more than five metres from the tape,if neccessary put in more grid pegs.
4)most essential for novice planners is to never try to 'muddle through' if your unsure how to proceed, ask for assistance!after all-if a picture paints a thousand words,then a well drawn site plan should be self explaining and also helps the site director to work out a strategy of excavation.
Its all down to
a)how good you are
b)what you are doing"
I couldn't agree more,i've often employed both methods when drawing up the same plan.
Some of the commonest mistakes i've seen when planning are
1)when laying out a tape between grid pegs not having it in a straight line!causing distorted measurements to be used, and on a large plan this can mean a lot of difference as to where features actually are located.
2)when using the offset method measuring from the tape to the feature,it should always be from feature to tape to get the right angle correct.
3) offsetting should never be more than five metres from the tape,if neccessary put in more grid pegs.
4)most essential for novice planners is to never try to 'muddle through' if your unsure how to proceed, ask for assistance!after all-if a picture paints a thousand words,then a well drawn site plan should be self explaining and also helps the site director to work out a strategy of excavation.