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Changing values in Linear Dimension


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Posted

I echo all the comments here and then some - i've had it before

where I've been given a dwg to edit, and before I can do any

changes, I've had to 're-draw- it because of the same resons posted

above, one of the problems was the person before me had been told

not to worry too much about accuracy - it's only meant to be

indicative (worst word in cad language! second only to "Exploded

dims/hatches) for discussion.

 

Since that day to this even if one of my drawings are "only for

discussion" I'll still take the time to draw accurately and then use a

viewport to see the drawing in paperspace and I setup the viewport

to whatever scale I need, and set up the paper size accordingly - be it A4 through to A0.

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Posted
Only ever change the scale of the border to fit the drawing.

 

Evil, as you can see you have inadvertantly opened a real can of worms with this one! :roll:

Scaling of the model does not go down at all well with the majority of CAD users, and causes major frustration, but..........

 

.........back to the point. If you still have the original dwg I suggest you take stevsmiths advice above, and scale your drawing border in modelspace, (x5, x10, or whatever suits to fit the model) thus keeping your model and dimensions unchanged. :thumbsup:

Posted

I finally understood the paperspace thing. Now i've made it how i wanted the plan to look. I must say that i had to use my CAD bible to understand it. I didn't quite catch the things mentioned in the tutorial i was given. No hard feelings. :) Thx a lot, and keep up the good work, enlightening the dull people like me. :)

 

If you like to make a draw fit for A1 or A2 use:

1. Scaling and text override - if no one i gonna use this draw and u wont make any changes to it. (not recommended)

2.Paper Space - if u are going to use this drawing in the future (strongly recommended)

3.The dim scale linear - it's not conviniet (my opinion) if u are not going to make any changes or if u are going to use the drawing again

 

That is what i've understood from all the posts. Correct me if I am wrong.

Posted

We're trying, mightly, to share our wisdom with you so that in the future you do not make the same mistakes some of us did. That's all. It is meant to be constructive criticism.

 

One advantage to a layout is that you can have more than one viewport and each viewport can be scaled independent of the other yet you've only drawn the object(s) once (back in modelspace).

 

Don't neglect to consult AutoCAD Help either. Take a look at the MView command and pay close attention to what is explained on both the Concept and Procedure tabs.

Posted

My company had a polish draughtsman draw up a stair we were to do in Edinburgh. This stair was massive.

He sent over the drawings, including the fabrication drawings.

I went and checked a few dimensions.

Some of them were overwritten.

I couldnt believe it, so i put all his pieces together and the job was wrong.

I had to redraw the entire stair from scratch because of this "idiot".

 

Dim Override should only be used when adding "%%C" or "%%D" or "MM. not for altering sizes.

Posted
Dim Override should only be used when adding "%%C" or "%%D" or "MM. not for altering sizes.

 

I disagree, those items should be put in the prefix or suffix of the dimension. If you need something expressed as a different unit, the properties fields allow for these as well. The ONLY time I overwrite a dimension is when it is specifically meant to be vague, such as a generic depth for a detail or to read "TO BE DETERMINED IN FIELD" or something similar.

Posted

Both ways have their strengths and weaknesses, but as long as the

distance shown on the dimension is the true distance that's the main

thing - i follow a rule of thumb - if it needs to show at "A" distance

dont draw at "B" distance and fudge-it later on/

Posted

Everyone is different Maxwell.

I can see how you would do it, mine is more manual i believe

Posted

"Close enough" is only good in horseshoes and land mines.

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