Scale in model space

[biff]

Hi. I have an old dwg that was scaled 1:500 in model space. I want to make it 1 to 1 in model space, then change it to a different scale in the layout. So in model space, do I just click on Scale then type in 500 and therefore my object should be 1:1?

thanks.

[BIGAL]

I take it it is metric scale 0.002 1/500

[cadvision]

are you sure it isn't drawn 1:1 in the model? that is normal. If you have a know dimension you can scale relative. But if it is drawn 1:500 then you would scale up 500.

[biff]

It was definitely drawn in model space and 1:500 was written on the drawning. The person who drew it never used the layouts to scale or print any of his drawings. Everything is in model space. Also it was drawn unitless.

[ReMark]

The person could have written any scale on it. The question is how have you verified it was drawn "to scale" (as one might do on a drafting board)?

 

Have you plotted the drawing?

[JD Mather]

What happens if you Save As an alternate test file name and try a Scale test?

[SLW210]

You could post the drawing file here and recieve the answer in a few seconds.

[CADPOLE]

Are there any dimensions on it? If there are; First go in to your dimention style manager, make sure check to make sure measurement scale on the primary units tab is set to 1. that way you know you are geting the right measurement. Make a secondary measurement to confirm or deny acuracy of distance. Then scale that puppy. If the 1+ 500 is acurate use scale / all / (basepoint) / r / 500 / 1. or if it isn't scale to 1=500 then use scale / all / (basepoint) / r / (turn your osnaps on [F3]) pick each node of the dimention and then type in the actual length. This should work unless the drawing is actually "not to scale" meaning they eyeballed it and your hosed. hope this helps.

[biff]

Here's the dwg.....I hope.

S72-301.dwg

[SLW210]

Looks to be drawn 1:1 in Model Space. The 1:500 in the title block is just giving what the Plotted scale will be plotted to a Arch D print.

[cadvision]

I loaded the drawing and measured the couple of dimensions that are on and it appears it has been drawn as metres being the base unit. I've been using AutoCAD since version 2.51 and all my files are unitless, but my base (New Zealand) is mm and I'm electrical. Most survey drawings here like this would be in metres. As you are in Canada and your drawing contains reference to both metric and imperial pipes I can only assume the measurements are in metres and not feet/yards.

 

Before layouts you plotted to a scale. The file seems to be drawn 1:1. So assume units are metres. then if you measure the titleblock it is 431m x 279m (@ 1:500 = 862mm (34") x 558mm (22"))

 

So there would be space around and my best guess is Arch D 914.4mm x 609.6mm (36" x 24" )

 

Doesn't look like an ISO metric size

Edited March 19, 2013 by cadvision

[biff]

I'm use to using the layouts for printing and scaling. I have to do some updates to this, so would you switch it into the layouts or just leave it alone and print the way it has been set up?

Thanks for your help.

[cadvision]

If you have a standard drawing setup you would normally use with model and layout with border then insert the old drawing into a new base, take the info from old border and put in new layout boarder and adjust your viewport so can see your model contents - may have to pan a bit.

[biff]

I have it in the layout and had to change it to 2:1 scale for it to fit. Is that correct?

[Marvin7]

I have it in the layout and had to change it to 2:1 scale for it to fit. Is that correct?

I don't quite follow you, but obviously the scale that you will list in your paperspace titleblock will depend on the size of the paper you'll be printing on.

 

If you're paranoid, you can check the size of the paper representation within AutoCAD by using the measure command directly in paperspace, from one end of the paper to the other.

 

Assuming the previous step confirms that the layout view is set correctly for your intended paper size, then create a viewport on that layout and zoom in and out until it fits correctly on your layout. When the viewport is active, the scale will be listed at the bottom right, and there's your answer. Though if you find that your scale is 0.017, for example, which is close to 1:50, you might want to just change the scale to 1:50 so that the scale is a round number (again, use the Viewport Scale button that is at the bottom right when the viewport is active).

 

This all assumes that your model space drawing is drawn 1:1 (a couple of other posters seem to have confirmed this) and you know what the unit of measure is.

[biff]

Thanks. I've got it figured out. I'm printing in D-size. I had to put the layout in 2:1 scale and I printed it to check that it was correct.

Cheers!