13tildawn Posted March 27, 2008 Share Posted March 27, 2008 hello, im dawn, a newbie i have a question how could i know if i'm using meters, and not inches, feet or millimeters? and how to set autocad to use meters not inches, feet, nor millimeters. many thanks! Quote Link to comment Share on other sites More sharing options...
azzro10 Posted March 27, 2008 Share Posted March 27, 2008 type "units" n have a look n change the settings as u wish have a browse thru some old threads this sort of Qs comes up a lot Quote Link to comment Share on other sites More sharing options...
13tildawn Posted March 27, 2008 Author Share Posted March 27, 2008 hello! ok ill browse, thanks for the reply, ^^ i think why these questions comes up a lot because autocad doesnt indicate m, in, ft, or mm, on the main workspace ^^ thanks! Quote Link to comment Share on other sites More sharing options...
Guest Alan Cullen Posted March 27, 2008 Share Posted March 27, 2008 The problem is, one acad drawing unit can be any unit you wish it to be, e.g. 1 acad unit = 1mm, or 1 acad unit = 1 ft. To know what units were used in the original drawing, you really need to identify a couple of points that you know the distance between, then measure between those points. That way you will soon work out what the original units used were. Quote Link to comment Share on other sites More sharing options...
Strix Posted March 27, 2008 Share Posted March 27, 2008 usually once a CAD station is set up it isn't an issue as to the units as most roles work in a standard unit - whatever that may be! Quote Link to comment Share on other sites More sharing options...
13tildawn Posted March 27, 2008 Author Share Posted March 27, 2008 thanks for the replies guys actually im learning autocad by myself so i'm a little frustrated. sorry^^ anyway, im asking because 1meter of course is different from 1feet when printed or plotted, no matter what scale it is, it's different so i have to know if unit ill be working with is meters or feet ^^ thanks! Quote Link to comment Share on other sites More sharing options...
Guest Alan Cullen Posted March 27, 2008 Share Posted March 27, 2008 On your drawing, did you find 2 points that you know what the distance between them SHOULD be, in metres? Quote Link to comment Share on other sites More sharing options...
13tildawn Posted March 27, 2008 Author Share Posted March 27, 2008 hmm havent tried that, ill try thanks! Quote Link to comment Share on other sites More sharing options...
CADDict Posted March 30, 2008 Share Posted March 30, 2008 Use the ddunits command. Quote Link to comment Share on other sites More sharing options...
azzro10 Posted March 30, 2008 Share Posted March 30, 2008 ddunits and units r the exact same command Quote Link to comment Share on other sites More sharing options...
CADDict Posted March 30, 2008 Share Posted March 30, 2008 You know, I never noticed that before. I've always used ddunits. Quote Link to comment Share on other sites More sharing options...
azzro10 Posted March 30, 2008 Share Posted March 30, 2008 iv just increased ur productivity by a millisecond Quote Link to comment Share on other sites More sharing options...
Rizalyn Posted September 8, 2013 Share Posted September 8, 2013 Hello, I'm having the same problem. But the only difference is that, I wasn't the one who made the drawing. It is from our client and I have to figure out which unit they used in order to proceed with the cutting. When I checked the unit, it appears to be in inches. I changed it to millimeters because that is what I need but then nothing seems modified. Whenever I create my own drawing, I always choose "acadiso" which is automatically in millimeters. Can anyone help me? Is there a command also to sum up all perimeters & areas of selected objects? Quote Link to comment Share on other sites More sharing options...
Dadgad Posted September 8, 2013 Share Posted September 8, 2013 Welcome to CADTutor. The command that will help you figure out what is going on here is -DWGUNITS (include the -). As shown in the image, means that the drawing is created with mm database units, as if you had created the drawing using the ACADISO template. Go slowly, and follow the prompts. I would suggest that you create a copy of your drawing, and experiment on that first, until you are sure you know what is going on with the scales. You will want to confirm when you are through that some known dimension in the drawing makes sense. It might be something like the diameter of a hole in some steel, or thickness of a flange, whatever. I use this all the time to ensure that the models with which I am working are what I expect them to be. Occasionally, when checking afterwards I will find that a hole which I might expect to be diameter 18mm is 457.2 mms, and that lets me know that I need to scale it from INCHES to MMS by a factor of 0.0393700787. If you could post the drawing, minus any proprietary information, title block etc, or just a small portion of it, I would be glad to take a look at it for you. Quote Link to comment Share on other sites More sharing options...
Dadgad Posted September 8, 2013 Share Posted September 8, 2013 On Lee Mac's excellent site he very generously offers a few different lisps dealing with AREA for free, amongst a great many more dealing with all manner of labor and time saving functions. http://www.lee-mac.com/totallengthandarea.html Thanks Lee! Quote Link to comment Share on other sites More sharing options...
Rizalyn Posted September 10, 2013 Share Posted September 10, 2013 Thank you.... I will follow your advice. I tried opening this site yesterday but can't get through. Quote Link to comment Share on other sites More sharing options...
Rizalyn Posted September 10, 2013 Share Posted September 10, 2013 By the way, I am new to autocad and I use this for waterjet cutting. But some of the autocad files I am receiving are way too small when I convert them to waterjet application. So, I am scaling the design to 1000x. But then, only the designs were scaled. When I tried to find the dimensions--- well--- I can't see coz it's too small. My question: How can I scale the file so that all the drawings in it including all properties are scaled too. Quote Link to comment Share on other sites More sharing options...
Rizalyn Posted September 10, 2013 Share Posted September 10, 2013 Hi Dadgad, Please find attached image. Quote Link to comment Share on other sites More sharing options...
SAFeSTeR Posted September 10, 2013 Share Posted September 10, 2013 (edited) By the way, I am new to autocad and I use this for waterjet cutting. But some of the autocad files I am receiving are way too small when I convert them to waterjet application. So, I am scaling the design to 1000x. But then, only the designs were scaled. When I tried to find the dimensions--- well--- I can't see coz it's too small. My question: How can I scale the file so that all the drawings in it including all properties are scaled too. It may be that the dimensions are found in the PAPERSPACE. There may be a few ways to scale these correctly, but I think other people will explain it better than myself, so I'll let them help you out Edited September 10, 2013 by SAFeSTeR Quote Link to comment Share on other sites More sharing options...
ReMark Posted September 10, 2013 Share Posted September 10, 2013 You can apply a scale factor to the dimensions (assuming they are in model space) via the DimStyle dialog box. Look on the Primary Units tab. Quote Link to comment Share on other sites More sharing options...
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