Unit measurement and scale setting

Unit measurement and scale setting

Anonymous
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Message 1 of 8

Unit measurement and scale setting

Anonymous
Not applicable

Hallo everyone,

 

I have a trouble with the unit measurement setting and with the non-compliance scale.

 

1th)

I need to set the unit measurement s as follow:

1 [CAD point] == 1[cm]

I don't find anywhare where to set that data, in AutoCAD are a lot of scale coefficients and nowhere is reported hot to set the unit of measurement.

 

2ond)

When I print the document from  the model space if I set the printing scale it works correctly, but when I use the layout page and I set a proper scale it doesn't correaspond.

It has a very stupid coefficient of scale,

eg: If i want to print with a scale ( 1 : 1 ) it becomes very little, to print correctly I have to set a scale of  ( 1  :  0,1675 ).

Also in the layout instruction there is not reported how to manage  this question.

 

Please, can anyone help and explane me how all this stuff works?

 

Thanks 

 

Riccardo

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Accepted solutions (2)
4,705 Views
7 Replies
Replies (7)
Message 2 of 8

steven-g
Mentor
Mentor
Accepted solution

The command you want is '-dwgunits' (that's with a hyphen) and then follow the prompts, the first one is the units so you need to enter 4 for cm.

If your layout scales are odd, then maybe you are not using the template to start a drawing for metric you should be using the acadltiso.dwt template (or your own) which should give you layouts set for using A4 paper. How big is the object you are drawing? Maybe post a dwg so someone could see if anything strange is going on.

 

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Message 3 of 8

Anonymous
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"The command you want is '-dwgunits' (that's with a hyphen) and then follow the prompts, the first one is the units so you need to enter 4 for cm."

I didn't know that command.

Now I tried this command, the result is that the drawing is scaled and now also the printing in the model becomes little and to have a line of 19 cm on the sheet I have to set a scale of ( 10 : 1 ).

I mean that after the command '-dwgunits' the measures on in the model are setted in cm but if I print from the model space, a line of 19 cm becomes, on the A4 sheet with a scale of ( 1 : 1 ),  19 mm.

I would like to set the drawing in a way that if I made a line of 19 points is printed on the paper 19 cm with a setted scale of ( 1 : 1).

 

"If your layout scales are odd, then maybe you are not using the template to start a drawing for metric you should be using the acadltiso.dwt template (or your own) which should give you layouts set for using A4 paper."

To be onest I don't look at which template I use, because I project plants that are going to become part of bigger projacts.

Each shipyard send me its general plans and after a initial cleanig and '_purge' of layers and blocks etc. etc., I start to insert my project in those plans.

It is the reason I want to understand how to set the file, I cannot redraw all ship for a single plant.

For what concern the used sheet in the layout space, it depends on the project, it varies from A4 to A0.

The printing default sheet usually results to be "small lecter"

 

I think is enough to change the below highlighted mm in cm.

Cattura.JPG

 

I attach a drawing with a simple line to see if there is something wrong.

The longer line should be 19 cm, and with a scale of ( 1 : 1 ) should be printed 19 cm instead it is still printed  19 mm

 

Thanks

 

Riccardo

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Message 4 of 8

pendean
Community Legend
Community Legend

FYI Your DWG file is still set to mm

Annotation.png

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Message 5 of 8

Anonymous
Not applicable

Forgive me,

 

While I was making several trying I resetted it.

Anyway it seems not working the same

Cattura.JPG

 

 

 

 

 

 

 

 

 

 

I attach again the file.

 

Thanks guys

 

Riccardo

Message 6 of 8

steven-g
Mentor
Mentor
Accepted solution

Paper layout will always remain in mm units (or inches for imperial) but the last two prompts of the -dwgunits command ask if you want to also convert objects in the current drawing if you have already drawn using cm then the answer is obviously no, but then the next prompt asks if you want to include objects in paper space you need to answer yes to that. Autocad will change the scale values for you so 1:1 will work (it actually makes 1 model unit = to 0.1mm). The -dwgunits command does that for all the scales to make them work for cm, it has to an A4 sheet of paper always remain 297x210 mm and will never be seen as 29.7x21.0 cm by AutoCAD (paperspace can only ever be millimetres or inches). The only problem you might have is if you decide to create your own custom scales then you need to account for the settings of the unit yourself.

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Message 7 of 8

fhollandLRRWZ
Community Visitor
Community Visitor

I tried this. I selected "2" for feet and it did not work at all. -dwgunits did not change anything. When I set a scale of 1/8"= 1', the size of the drawing (in paper space) is the same as if I had selected "1" for inches. This is frustrating. I want it to work when I set a scale in paper space. 

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Message 8 of 8

pendean
Community Legend
Community Legend
Greetings @fhollandLRRWZ
Since we all can do this in our own files, can you share your DWG file and add notes inside it as to what and where you tried what you tried?

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