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Thread ID: 54502 2005-02-14 01:12:00 Scaling in AutoCAD 2005 Veale (536) Press F1
Post ID Timestamp Content User
324783 2005-02-14 01:12:00 Am trying to draw a long-section in AutoCAD 2005.

Does anybody know how to draw a long section with different horizontal and vertical scales in model view.

It is possible to turn the vertial readings into a block and then change the scaling factor but this then makes it print in layout view at an unusable scale.

Any ideas, its starting to become really frustrating.

Back to the drawing board (literally)

Veale
Veale (536)
324784 2005-02-14 08:31:00 I've done long sections that way (blocking, then inserting it with unequal X & Y scale factors).
I don't understand why the scale should be unusable if you specify the scale factors, or why there should be a problem with scale in a layout, unless you're talking about text distortion. Can you be more specific?
neddy (2192)
324785 2005-02-14 19:15:00 The way I do it is as follows:

Draw long section.
Convert vertical lines and reduced levels into a block
Change 'Y' scale factor of block to say 5 or 10, this distorts the vertical section.
If you then go to layout view and print it at say 1:5 or anything, there is no way you can use a scale ruler to measure things off the drawing as it is at an unnatural scale. (I'd like it at say 1:5, 1:10, 1: 25 etc)

Veale
Veale (536)
324786 2005-02-14 20:42:00 As I see it, it is a matter of scale selection which results in a standard scale when the two scales (model Y axis and layout) are multiplied.
Once the layout scale has been decided on, the Y axis scaling in paper space should be selected to result in a standard scale. So if you apply a layout scale of 1:5 (0.2) and the Y-axis is stretched x5, the resulting layout vertical scaling should be 1:1
Can't see any other way of doing it (or am I misunderstanding your dilemma?)
cheers
neddy (2192)
324787 2005-02-14 21:00:00 This is quite confusing!

The thing is, if I decide to draw a long section by freehand (on a drawing board) you can decide to do the horizontal scale at say 1:750 and the vertical at 1:50, this allows for an exaggerated vertical scaling so you can clearly see dips and rises.

This is what I would like to do in AutoCAD. The problem is you draw everything in a 1:1 environment. It does not allow you to mix scales (other than dimensions) in the model view. This means I am looking at a very flat and therefore useless longsection.

You can then change the vert to block and scale to the y axis, that then exaggerates it, just like I want. You then have to scale it in layout view at a scale that will fit on either A4 or A3 paper. The resulting drawing is not at a natural scale that can be used.

Ideas?
Veale (536)
324788 2005-02-14 21:28:00 My previous post still stands - I understand your problem (been doing Acad for years, it's how I make a living)
If you want a paperspace layout of nominally 1:750 (X-axis is your case), but want the Y axis to print out at 1:50, you must exaggerate the Y axis scale in model space by 750/50 = 15.
That's it.
neddy (2192)
324789 2005-02-14 21:55:00 Thank God,

You have no idea how long I've spent trying to figure that out!
Tried it at couple of scales and they all work!

Only problem is that if you scale the 'Y' axis too far up (say above 30) then it is hard fit on an A3 sheet, but i'm guessing I can set myself a datum to fix that.

Very grateful Neddy, much appreciated.

Cheers, Veale
Veale (536)
324790 2005-02-14 23:26:00 Veale
Glad you got it going, I was getting worried!
cheers
Ned
neddy (2192)
324791 2006-01-22 05:24:00 hello all, its my first time here, justing wondering how long you've all been using cad? mini_magget03 (418)
324792 2006-01-23 08:52:00 When scaling in AutoCAD you have 2 options. You can either block the whole thing that is graphic and text into one block. Or Block the graphic and left the text part alone , that is, the distance, height, datum etc. Use the bottom left corner of graphic thing as a reference point. Then change vertical scaling but leave the horizontal scaling alone. This way you can change the vertical scale ie 1:2, 1:5 etc.
This is what I normally do is to block the graphic representation and change to whatever scale.
Hope this help
stingray68 (7305)
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