scaled cad drawings

[Anonymous]

I have received a CAD drawing showing levels on it  but not to scale , is this normal

[Alfred.NESWADBA]

Hi,

>> a CAD drawing showing levels

Is possible, why not.

>> but not to scale , is this normal

What is meant by that? Can't you scale it or are your curious about it is already drawing 1:1?

Please describe a bit more detailed what the question is.

- alfred -

[Anonymous]

NO, not being to scale is not normal, but what isn't to scale??

[beyoungjr]

Pretty vague post.  Probably should attach the dwg file so helpers can have a look.  Then we can help you word your question maybe;)

[hencoop]

You called them Levels... Is the drawing a MicroStation DGN file?

If so there are unit settings in the DGN file that differ from typical AutoCAD units.  If you know what the units settings are in the DGN then you can properly translate them to the correct scale in AutoCAD.

[Anonymous]

it is a dwg of a structure showing the SSL levels in the model space but the the drawing is scaled down by 0.5 , for example the cad section shows two SSL level at 94.0 & the next lower SSL at 90 but when you measure the dims off cad it shows the floors to be 2m apart rather than 4m . My argument hear is if you are passing on a dwg file with levels indicated on the model space it should be to the correct scale.  

[hencoop]

Okay,

Language is making it difficult for me to understand.  I think from your explanation that your "Levels" are my "Elevations" or at least "Floors" of a structure.

I am sorry I don't recognize what SSL means (maybe I'm just suffering a brain fog, idk).  In any case I don't think I have a solution to the problem.

[Anonymous]

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@Anonymous wrote:

it is a dwg of a structure showing the SSL levels in the model space but the the drawing is scaled down by 0.5 , for example the cad section shows two SSL level at 94.0 & the next lower SSL at 90 but when you measure the dims off cad it shows the floors to be 2m apart rather than 4m . My argument hear is if you are passing on a dwg file with levels indicated on the model space it should be to the correct scale.  

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Post the dwg so we can have a look.

[steven-g]

It isn't good practice, but unfortunately it is common. I usually just scale the whole drawing before working further on them, but I am usually the only one working on a particular project and seldom have to send drawings out to other people or back to clients, so only you can decide what is best.

[Anonymous]

there are instance where setting out engineers would directly transfer co-ordinates from a dwg to a EDM , and if the issued dws is in incorrect scale this can cause a lot of issues . End of the day if a dwg is to be sent out to a client it should be accurate in all aspects  

[steven-g]

If you are sending drawings between companies or departments, then either it should be an agreement as to the units used, in which case you or a liason should make it clear to the other party, or you need to make sure that your drawings are in accordance with the "standard". As I said I get drawings in all sorts of variations many of which are legitimate, some people use meters as a unit of measurement, many use centimeters and most (including myself) prefer millimeters, all these follow the rule of drawing full size but I still always scale them so that the units are millimeters, because that is the unit that our drawings are dimensioned in for use in the factory and for site fitting.