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retraining as been out for a while ... trying to get my head around scaling and ratios on drawings .. is there a technique easy way to grasp ratios / scaling of a room ?
Discuss Scales and ratios on drawings in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
retraining as been out for a while ... trying to get my head around scaling and ratios on drawings .. is there a technique easy way to grasp ratios / scaling of a room ?
Thanks mate I appreciate if the scale is on the drawing I can multiply by the scale .. but if there is no scale like pic below do I add all the measurements horizontal and vertical and then measure with ruler to give me scale of doc ?It's pretty straightforward. If a drawing is to a scale of 1:20, then any dimension you measure on the drawing needs to be multiplied by 20 to give the true distance on the ground.
However, if at all possible, go by the dimensions marked on the drawing rather than measuring the drawing.
Excellent thanks mate will try that with ruler but like the sound of your logicIf the diagram is to scale and the measurements are given on the diagram then measure one of the given measurements with a ruler and divide the given measurement by the ruler measurement to get the scale.
So say the 350mm marked on your diagram when measured on the paper was 35mm long then the scale of the diagram is 350/35 = 10 so the scale is 1:10.
you can then check if the 175mm marked is (175/10) =17.5mm long to ensure the diagram is to scale.
Thanks mate I appreciate if the scale is on the drawing I can multiply by the scale .. but if there is no scale like pic below do I add all the measurements horizontal and vertical and then measure with ruler to give me scale of doc ?
Reply to Scales and ratios on drawings in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
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