Confused by scale issue when set to 1:1_1

[Bob658]

I have two different models. both have the units set to metres and both have the scale set to 1:1_1. However when the 'Edit Drawing Scales' when you select the 1:1_1 it states at the bottom that '1 paper unit = 1 drawing unit' but in the other model ''1 paper unit = 0.001 drawing unit'. As you can't edit this I'm not sure how it happened. Can anybody shed any light on this.?

[CyberAngel]

How is "1:1_1" different from "1:1"? Is it possible there's a duplicate scale?

[Bob658]

It's not a duplicate scale. As far as I'm aware 1:1_1 is a standard scale and generally that's the only one I use. 

[BIGAL]

Need some more info, are you talking about plotting settings, we worked in metres, and when plotting just set the 1 printed unit = 1 drawing units, our title block was a A1 and if you checked the size of the title block in a layout it was 641x594. For A3 did 1 print = 2 drawing.

 

Or is it annotation scaling ?

Edited 17 hours ago by BIGAL

[Bob658]

It's causing a plotting issue. The way I work is, model space set to meters and scale is 1:1_1. Paper space is in millimeters. I then set the viewport scale to be whatever I want it to be. I've worked like this since starting using AutoCAD some 25 years ago.

Occasionally I get sent a file where this doesn't work and when I look into it, the problem is that for scale 1:1_1  it's set to '1 paper unit = 0.001' drawing unit'. This makes the viewport  scale1000 times larger. If I could edit it to be '1 paper unit = 1 drawing unit' it wouldn't be a problem but it won't allow me to edit it. If I'm plotting something at 1:5000 I have to pick the scale 1:5 as a work around. 

[SLW210]

I have never seen a standard scale of 1:1_1.

 

Scale         Type Scale                Description

 

Imperial Architectural

1/4" = 1'-0"    (1:48)    Commonly used for floor plans

1/8" = 1'-0"     (1:96)   Used for detail drawings

1/2" = 1'-0"    (1:24)     For larger details or sections

1" = 1'-0"        (1:12)         Used for large scale details

3/4" = 1'-0"    (1:16)    Used for specific areas

1" = 10' -0"    (1:120)     For site plans or larger layouts

 

Imperial Engineering

1" = 10'      (1:120)      Used in civil engineering

1" = 20'      (1:240)       Site plans and large infrastructure

1" = 30'     (1:360)        Larger site layouts

1" = 40'     (1:480)        Used for extensive projects

 

Metric

1:1                                     Full scale

1:10                                  For large models

1:20                                  Common for architectural plans

1:50                                  Used for detail and construction plans

1:100                               Site plans and larger structures

1:200                               Used for overview layouts

1:500                               For urban planning diagrams

1:1000                            For regional planning

 

 

Can you post an example .dwg with a non-editable scale?

[CyberAngel]

To test my memory, I opened the default drawing, created a new scale 1:1, and drew a couple of objects and a dimension. I made the dimension annotative and gave it the 1:1 scale. I copied those objects to the clipboard.

 

Then I opened a second new drawing, which had our template settings, including a 1:1 scale. I pasted the objects from the clipboard into the second drawing.

 

You'll never guess what happened. The pasted dimension had a scale of 1:1_1. In other words, that's the type of name AutoCAD gives a duplicate scale when it doesn't want you to rename an arbitrarily large group of settings.

 

Does that shed any light on the issue?