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Working with Scale

ange
Observer

Working with Scale

ange
Observer
Observer

I use Auto CAD LT 2016 on a Mac.

I use it for Event Plans and get sent the dwg from ordnance survey which holds the coordinates for late GPS mapping on site.

I'm struggling to plot to scale. I use to use CAD on PC and never had this issue.

 

In Model space parts of my drawing are measured to M as I can deal with sites that are over 1000m in width.

 

I can set up a viewport fine and have done so for a sample A0 paper size, to test is I did the following:

 

NB: I only work in 2D 

 

Set an A0 paper size 

Open a veiwport to the size

Centred on a chair on the drawing about 60cm x 30cm so that it would fit on an A0 peice of paper whole 

hit 1:1 this SHOULD make the chair fit   roughly on the page  however my whole 600m site fits on 1 sheet of A0!

 

what am I doing wrong?

I have attached a drawing for you 

 

Thanks in advance

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Respuestas (3)

maxim_k
Consultant
Consultant

Welcome to Autodesk Forums!

Hi,

If you setup A0 paper size for the layout, the size of the sheet should be 841x1189 AutoCAD units. So when you create viewport with dimensions 800 x1100 units and set scale 1:1 for this viewport, it will show Model space area with dimensions 800x1100 units.
Each unit in your drawing equals 1 meter, so the area you will see inside viewport will be 800x1100 metres assuming 1:1 scale.
The size of the site in your drawing is 350x350 metres, so it will be inside 800x1100 metres viewport area.

Maxim


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Maxim Kanaev
Architect
MARSS

MacACAD | Linkedin

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maxim_k
Consultant
Consultant
Solución aceptada
If 1 unit in Model space equals 1 m in real world units and you want to have 1 cm of real world units equal 1 mm on paper, you need to set viewport scale to 100:1, if you want 1 mm of real world units equal 1 mm on paper, than the viewport scale should be 1000:1.

Maxim

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Maxim Kanaev
Architect
MARSS

MacACAD | Linkedin

Etiquette and Ground Rules of Autodesk Community
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ange
Observer
Observer

thank you so much! 

 

 

As soon as I saw your reply it clicked!

So with this principle 1:500 in A3 should be set as 1000:500 in edit scale?

 

usually I dont have an issue as most work in mm lately though the OS have been set over as m.

 

I dont like playing too much in Scale incase I fiddle with the OS Coorinates!

Thanks for the speedy reply, i'll be using the forum again!

 

A x 

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