How to RESET dimensions for CAD Drawings? - SOLVED


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OK, I have my visor down, flame retardant suit on.

So here comes a stupid question, one of many to come.  I drew the following on grid using the CAD function in CA.

I just drew it over the grid, keeping 1/4" = 2" but I did not set or customize by Edit > Default or anywhere else any setting that 1/4" = 2"

So for instance if I use Tape Measure, the measurement it reports has no relation to the measurement I have drawn.

If you please, what should I do to be able to use Dimensions and how do I do it?

 

image.thumb.png.5b76b0b5561d7fc92489bdfb2775430d.png

 

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Graeme conceptually I understand what you are saying.  Is there anyway I can take what I have already drawn (the above is just one drawing of many) and somehow in settings, default, preferences or elsewhere change it so that 1/4" on the grid = 1/4" for what I have drawn?

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How did you draw everything without using dimensions?

 

When you do dimension something, how does the dimension relate to what you have drawn? 

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1. What in the flip is 1/4"=2"? That is making my head bleed. So 1"=8" or 2/3" = 1'-0" My professor would not have failed you but he would have hung you in effigy until your bones were plucked clean by Ravens.

2. Hopefully this is the only detail you have done this for. If so, just fake your dimensions with cad lines/arrows and numbers as text. I constantly draw centerline notes for a widow location and use EQ. for my information rather than describing a number.

3. in the future, draw to scale and choose a scale that won't hurt me so much. 1"=1'-0" (basic information detail) 3" = 1'-0" (critical detail with a lot of information and layers of materials overlapping)

image.thumb.png.6ddc79eb7f06b40b54997137f06dae2d.png

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One other thing (and I promise to be nice), when drawing your detail keep in mind the readability when sending to layout. I want all my text (that are not titles) to appear at approx. 1/8" tall actual when printed (1/4" scale drawings for Arial means 5" tall text). Bigger if it is something I want to call a lot of attention to. Therefore, when looking at that detail, it appears you would need to have that print at almost 18" tall for the text to maintain that 1/8" actual rule. If you make text smaller than 1/8" tall, it will likely not be read since people will need to struggle to read it. Most plan checkers would reject sub 1/8" text if they are handed a hard copy.

 

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OK, I've raised my visor, and I am looking around, but I am still keeping my flame retardant suit on...

 

32 minutes ago, Kiwideziner said:

I was trying to infer that with the one you already have use transform/replicate and scale it back to 1 to 1 scale.

I marquee'd the entire CAD drawing above and right clicked Transform/Replicate and chose Resize,  and just went with what was there which was "1"

 

But when I run the Tape measure down the 24" H footing/grade beam it still reads 12'

I get 24" = 3' when I resize to 0.25

 

 

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58 minutes ago, DeltaHome said:

Hmmm.  Resize Factor: 8.0, I believe is 93' but the font is too small to read. 

 


I must be missing something.  I don’t understand how you were able to draw that entire detail at such an odd scale but you’re unable to do the math to size it back up to full scale.  1/4”=2”  means that you drew a 1/4” line to represent a 2” line right?  Your line is 1/4” long but needs to be upsized to 2”.  2.00 inches divided by 0.25 inches = 8.00.  Either the initial information you gave us was wrong or you have already changed your scale to something else.  If you were working off the 24”=3’ version then you would need to use a resize factor of 1.5 (1.5x24” = 3’).

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1 file was larger than 14M and was skipped.

I will make a stripped down duplicate of the plan to attach.

Carry on.

I will be back later today.

Thank you all for sharing for your knowledge and experience.

Brilliance shared is appreciated. 

 

 

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I opened and examined the CAD file. The drawing is very imprecise: most objects are drawn slightly "off"; for instance, the footing depth is 143.5135 inches, or approximately 11' 11-1/2". Most other objects are similarly imprecise, and not uniformly so. If you use the footing as your baseline, and scale the entire drawing by 24/143.5135=0.167232, the footing depth will be correct (or close enough), but most of the other objects will remain imprecise. You can set up a dimension default to round off to whatever precision is acceptable, but some dimensions may still need their values altered manually. Also, the CAD work is very sloppy (or, at least, the resulting dwg export is sloppy); I suggest you turn off your Grid snaps, and learn how to use Object snaps. And as everyone else has mentioned, draw at a 1:1 scale.

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The DWG file you attached appears to have been drawn at a roughly 6:1 scale which is quite different than the 1:8 scale you initially described.  As Robert already pointed out, the scale isn't consistent and varies a bit depending on the object, and your various CAD items are out of alignment. You also have a whole bunch of overlapping CAD, segmented lines, and partitioned fills.  I'm really pretty curious how you even got this drawing to the current state.  It looks like a combination of imported CAD, CAD Detail From Views, and manual drafting.  

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For those of you who are instructors, just in case you come across someone like me in the future, here is my progression:

 

1.  Dining room table with No. 2 pencil and grid paper;

2.  Erasures, erasures, and more erasures...

3.  Thought:  There must be an electronic form of grid paper...

4.  Chief Home Designer.

5.  Start drawing with electronic grid paper, but in the same way I was drawing with the No. 2 pencil.

5.  Ok, but I need to draw a foundation, time to upgrade.

6.  Hmmm...  My drawings are "detailed" but imprecise, and seem to have no relation to the dimension tools in CA. 

7.  Time to expose my ignorance to the forum and ask for Help.

 

Alaskan_Son, so, yes, it is all manual drafting.

 

rlackore,  what exactly would I do to draw CAD at a 1:1 scale?  I assume that I would have to start from scratch, then anything CAD I draw would be 1:1 by default?  Or is there a default or preference I must select to draw CAD Details at 1:1 scale?

 

I certainly can turn off grid snaps and go with object snaps.

 

I am sorry for my misrepresentation of the scale. 

Is there a way to convert what I have to 1:1 scale and then go through and clean it up?

 

 

This quote may apply here:

"Anyone who thinks that they have designed something that is "idiot proof" does not truly appreciate the ingenuity of idiots..."


 

 

 

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Eric thank you.  Last night when I watched the video you linked and then again this morning, "He says in all cases we are drawing in actual size."  at 0:39.

 

So, it appears that if I start from scratch, with a blank CAD Detail screen, I would by default be drawing in actual size.

 

But what to do now?

 

To All:  Will it be helpful to post up a stripped version of the plan, or merely invite more distractions and derision.  (I was hoping to feed you the morsels of my ignorance a little bit at a time.) 

 

And solving the issue of this thread by converting the existing drawing to 1:1 scale prior to cleanup would help me move the entire project further.

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  • DeltaHome changed the title to How to RESET dimensions for CAD Drawings? - SOLVED

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