djole Posted March 30, 2011 Posted March 30, 2011 I have a .dwg drawing, and the same one but in .pdf file format. On the .pdf one, there stands the scale (1:500), but on .dwg one there is no scale. I was wondering, how could I determine the scale of the .dwg one? Thank you. Quote
Linkan Posted March 30, 2011 Posted March 30, 2011 Easiest sollution: ask the person that sent you the drawing. Usually you draw in 1:1 but ive seen a lot of strange drawings... Quote
sparkyuk Posted March 30, 2011 Posted March 30, 2011 Is this drawing in paper space or model space ? has it got any dims on the drawing in model space ? Quote
djole Posted March 30, 2011 Author Posted March 30, 2011 I can not ask the person that sent me the files Sparky you are right ! At the Model space tab, there stands, scale R 1:1000. And the units are Milimeters. So I guess this means, 1.0 length unit in this .dwg file is a 1 meter? Quote
sparkyuk Posted March 30, 2011 Posted March 30, 2011 1:1 is the norm 4 model space ie 1unit =1mm, if you have a know dim then measure it see what it reads Quote
djole Posted March 30, 2011 Author Posted March 30, 2011 Thank you for the reply once again. Sorry if I sound boring Sparky. what do you mean by "if you have a know dim then measure it see, what it reads" here is the file: http://www.gamefront.com/files/20173230/Vorl%C3%A4ufiger+H%C3%B6henplan+H%C3%B6henbahn+Seenplateau.dwg Quote
sparkyuk Posted March 30, 2011 Posted March 30, 2011 Sorry dims means dimensions, the paper space states 1:1000 because your drawing is of a landscape im guess it will be metres not mm, but im not sure sorry m8, I expect someone will come along and confirm that for you Quote
eldon Posted March 30, 2011 Posted March 30, 2011 This is a grid tick. Did you check the distance between adjacent grid ticks? Quote
djole Posted March 30, 2011 Author Posted March 30, 2011 thank you for the reply eldon. No I did not. I even did not know what are adjacent grid ticks? How can that help me with this? Sorry is I sound as an amateur. Quote
eldon Posted March 30, 2011 Posted March 30, 2011 These are two adjacent grid ticks (next to each other) and if you do a bit of mental arithmetic, and measure between them, you should get the distance of 100 units. Your drawing does not give you unambiguous units, but you will have to see what sense you can make of the general dimensions, which seem to be metric. Does the contoured area cover 600m or 600cm or 600mm? You can probably tell. The person who created the drawing has not done a good job because the drawing should have the information in it. For example, I draw the grid ticks like this, and you can see immediately that the units are metres. Quote
djole Posted March 31, 2011 Author Posted March 31, 2011 thank you for the help Eldon. The presented surface is a mountain slope - so the units are in meters. I owe you a beer. thank you. Quote
djole Posted March 31, 2011 Author Posted March 31, 2011 it seems the drawer made this mistake also: whenever you draw something you draw it in 1:1 scale, right? And the draftman, drew it in 1:1000 scale? Quote
Organic Posted March 31, 2011 Posted March 31, 2011 Check the drawing units. It was probably done in mm (not m) if it is 1000x larger than you would expect it to be. Quote
eldon Posted March 31, 2011 Posted March 31, 2011 Perhaps he was drawing at metre units after all. The only reference that I can find to mm units is for the DesignCenter blocks scaling. Perhaps he never had to use this feature, and never bothered to change the units from the default setting. Unless you can speak to him, you will never know for sure. One of life's little mysteries Quote
eldon Posted March 31, 2011 Posted March 31, 2011 Check the drawing units. It was probably done in mm (not m) if it is 1000x larger than you would expect it to be. Did you actually look at the drawing posted? Where can you check the drawing units? I have never seen a drawing that actually names what the drawing units are. But then I only use an old version of AutoCAD, perhaps it is a new feature. Quote
eldon Posted March 31, 2011 Posted March 31, 2011 Is that a screen grab from the supplied drawing? I don't have that feature, so it would be part of my learning today, if you could post a screen grab from the OP's drawing. Thank you. Quote
designerstuart Posted March 31, 2011 Posted March 31, 2011 ah no it isn't from the OP's drawing - just showing how to see the unit settings (AutoCAD 2009) EDIT: i cannot view units on OP's dwg as it has elements from a newer version. Quote
sparkyuk Posted March 31, 2011 Posted March 31, 2011 units are decimal throughout from what I can see ? Quote
SLW210 Posted March 31, 2011 Posted March 31, 2011 And I am always told how non-confusing the metric system is compared to Imperial. Quote
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