topic About Scaling in Model Space in AutoCAD Forum

About Scaling in Model Space

geteway2digitalindia — Sat, 06 Sep 2025 16:19:05 GMT

I happened to come across one project drawing. Only model space is seen to be active.

Trying to dig deep on the following aspects of the drawing :

1. What is the probable basis of the outermost rectangle marking the drawing area.

2. What is the implication of the info : "PRINT SCALE = 1:200 (PAPER SIZE A0)" on top of Pile Cap schedule.

3. What is the relevance of the 1:100, 1:25 scales indicated in the Title block

4. What is the relevance of 1:25 scales for the pile caps, placing any dimension will reveal different figures - probably due to differences in DIMENSION STYLE.

Pls guide..........

Re: About Scaling in Model Space

paullimapa — Sun, 07 Sep 2025 10:50:29 GMT

Back in the day before paper space layouts drawing & then plotting from model space was the only way to go.

Typically objects are drawn at full scale in model space. Then information would be provided to also inform the user the scale to plot in this case 1:200 and the paper size A0 (in this case it's actually full bleed).

Also I would indicate the window area to plot (which is kind of confusing in this drawing since there are multiple borders).

But here's the PLOT window settings:

then the preview based on these settings:

Re: About Scaling in Model Space

imadHabash — Sat, 06 Sep 2025 17:27:39 GMT

Hi,

This is the way when you depend ONLY in model space for printing issue.

Re: About Scaling in Model Space

paullimapa — Sat, 06 Sep 2025 17:40:32 GMT

Now I'm actually confused with the scale labels especially 1:100 on the TOWER 2 Foundation Layout Plan.

Could the 1:100 be in error since it's drawn at full scale but plotted at 1:200?

Re: About Scaling in Model Space

Moshe-A — Sat, 06 Sep 2025 18:46:34 GMT

@paullimapa hi,

If you plot it at 1=200 scale, the main building drawing would be 1:200 but it's specified at 1:100

each detail specified 1:25 would become 1:50. so to plot it at exact right scale it should be sent at 1=100

but this will produce 2700 x 2100 mm paper size 🤔

Moshe

Re: About Scaling in Model Space

paullimapa — Sat, 06 Sep 2025 19:10:25 GMT

But how would the person receiving the hardcopy know that everything is scaled by half when this information is NOT indicated anywhere?

Remember the Hardcopy does not show this notation in the upper right hand corner because it's cutoff from the plot:

Re: About Scaling in Model Space

cadffm — Sat, 06 Sep 2025 20:27:36 GMT

1:100 print= right drawing

but wrong title&frame,impossible size

So it's just a mistake, or no one who have to work with a <whats the name of measure thing in real life> on the paper/pdf result.

One who add the 1:200 note should have to correct the "1:25" and "1:100" text to 1:50 and 1:200

Re: About Scaling in Model Space

paullimapa — Sat, 06 Sep 2025 20:42:12 GMT

something is definitely wrong with the scale notations because 1:100 on A0 Full Bleed size paper can barely fit the entire foundation plan:

Re: About Scaling in Model Space

Moshe-A — Sun, 07 Sep 2025 08:13:10 GMT

@paullimapa ,

Well that is a responsible of the Author (or the sender). maybe the purpose of this plan is only for reviewing so the scale is less important.

reception should know he is not allowed to take measures.

Moshe