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Topic ClosedAuto CAD Units

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HenryT View Drop Down
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Joined: 26.Nov.2010
Location: South Africa
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Direct Link To This Post Topic: Auto CAD Units
    Posted: 05.May.2015 at 08:50
Good morning all,

I have been working with Auto CAD for quite some while now and I still get stuck on this problem. I get given a loft of drawing that were done in 3 party software so when I receive a drawing that I need to work on I always start off with the what the current scale a the drawing is.(sometimes the drawing gets done in meters in the 3 party software and when I pull it into Auto CAD it interprets the meters as millimetres which means I basically have to scale the current object with a 1000 so that it would be the correct size. I have always done this by checking the scale of the objects in the current drawing. I have attached a dwg. where I adjusted the units three times (Millimetre ,Meter and Kilometre) but when I draw A line of 1000 units long ,in  all three unit types the line is the same length .Common sense tells me that the line drawn in meters would be longer than the line drawn in millimetres ,same when it comes to the length difference between the one drawn in meters and the one line in kilometres.

So basically when I open a dwg. how would one know the current size (when measuring ) of an object  as well as how would I change my drawing units so when I measure an object the current dimension displays either millimetres ,meters or whatever I would like the units to be.

Can you please assist me with this problem?

uploads/151088/Henry.dwg

Henry Klopper

Draughting and boardsports
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John Connor View Drop Down
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Direct Link To This Post Posted: 05.May.2015 at 11:21
You check the scale of objects in the drawing?  Why don't you use the -DWGUNITS command?  It will tell you what units were used to create the drawing.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

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HenryT View Drop Down
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Joined: 26.Nov.2010
Location: South Africa
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Direct Link To This Post Posted: 05.May.2015 at 12:32
Hi John,

Thank you very much for your quick response. I will have a look and see if this will resolve my problem.
Draughting and boardsports
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Lokislady85 View Drop Down
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Direct Link To This Post Posted: 07.May.2015 at 16:36
If all else fails find something in the drawing that you know its true size (i.e. doorways are generally between 3 and 3'6") and see how it shows up using the MEASURE command/button. 
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John Connor View Drop Down
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Direct Link To This Post Posted: 07.May.2015 at 16:58
The OP is working in metric units.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

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