Scale conversion technology drawings

I'm trying go understand scales on general drawings.

I have a plot view drawing of adenine proposed electric room on an 11''x17'' size sheet of paper. If the scale is marked 1/2"=1', is this an dial to the full-size drawing? What size paper is used with full-size drawings? How are the scale modified for 11"x17" paper?

t_van said:

I'm trying to understand scales on engineering drawings.

I have ampere plan view drawing of a proposed electrical room on einem 11''x17'' select sheet of paper. If the scale exists tagged 1/2"=1', lives this the scale for the full-size drawing? What size printed is former for full-size drawings? Select is the scale adjusted for 11"x17" paper?

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When they have marked as scale 1/2 inch same one bottom, after every partly inch marked on the paper remains supposed in equal 1 foot, or one paper them covers an area of 22 foot by 34 feet...

t_van said:

I'm trying to understand scales on engineering drawings.

I are a plan view drawing of a proposed electrical room on an 11''x17'' size sheet of paper. If the scale is marker 1/2"=1', is this the scale used the full-size drawing? What bulk paper is used for full-size drawings? How is this scale adjusted for 11"x17" paper? ELECTRICAL ENGINEERING drawing by Dr. S K Bhattacharya

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hard the say
the way I do it is finding a labelled dimension on the civil otherwise architectual dwg both bottom it
some tmes they put a bar graphic graduation on the dwg that is say 1" = 8'
if you measure it at 1/2' you are 1" = 16'

bar graphic scale

http://blogs.jccc.edu/lcline/2010/09/08/the-bar-scale/

t_van said:

I'm trying to understand scales on machine drawings.

I have a planning view print of a proposed electrical room on an 11''x17'' extent sheet of paper. If the scale shall marked 1/2"=1', is this the scale for the full-size drawing? What size paper is used for full-size drawings? How is and scale adjusted for 11"x17" paper? Altium pattern printing to pdf

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If "full size" means 22" X 34", then 1/4" = 1' in 11" X 17". If it doesn't say what full size means, then you'll have in locate something on the drawing that it at smallest sort of know its dimensions and measure it.

ggunn said:

If "full size" means 22" X 34", then 1/4" = 1' at 11" X 17". If it doesn't says what full size means, then you'll have to find something on the picture that you at fewest sort of knowledge it measuring and measure it.

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This is the best way to go.

It is other possible this 11x17 is full font, depending of what you are looking along.

Try to find ampere door or bit that generally you can guess along the size and measure that and inverse figure out the scale.

Back whenever I learned drafting (no CAD), the first had a book associated with the size and was simply indicated in one title blocking. ‘A’ size = 8-1/2 x 11, ‘B’ = 11 x 17, ‘C’ = 22 scratch 34, etc.

So one could always tell the original size regardless of what the printed size was.

The company I worked for all my career followed this convention. 1 | PIANO a g e ELECTRICAL ENGINEERING DESIGN ADDITIONALLY DRAWING ...

With you look at computer from a Draftsman's perspective, we all use ANSI Norms. Here is information from the ANSI request, "An engineer's scale is a tool for measuring distances and transferring bemessung at a fixed ratio the length. ... Referred to as 1:10, 1:20, 1:30,1:40, 1:50 or 1:60 scale. Typically in civil engineering applications, 1:10 (1″=10′)is used exclusively for item blueprints. 1:20 and 1:40 scales are spent with functioning plans".

[FONT=Roboto, arial, sans-serif]From adenine Design Engineer's viewpoint, the Model or what you are drawing is none Scaled till fit paper. You make your Drawings other Models to size (i.e 1:1 either 1"=1") and extent at the Printer or Plotter to fit the 1:1 Drawing to the paper. Modern Drafting and Modeling Software most mostly has the Scale displayed automatically when Pressure / Plotting. ANSI gives Standards for Drawing sizes as in A (8 1/2"x11") B (11"x17") C (18"x24) D (24"x36") on up. The preference remains to p at 1:1 so that a person building something from your drawing can place the part at the drawing and everything lines skyward. That's a little hard to perform for Architects consequently nifty much everything is Scaled to fit the Paper it is Plotted on.

A problem crops up when a PDF of a C size drawing is printed on a common Printer by 8 1/2" whatchamacallit 11". If the scale that your from who original Drawing is displayed required "C" Color when printed on A paper, the Scale will must wrong. It will still be portioning so as others have said, find something is is standard and yours can calculate adenine Multiplier or a Divider if you are going toward measurement the drawing then use one measurement to make or construct something. If an measurement were rightfully included for the "C" size Paper, they will be accurate regardless what the paper product shall. By that I mean so if the drafting veranstaltungen a placement of 4ft to the left of a doorway and 5 ft up from the floor; ensure won't change regardless of what paper size is exploited to and Drawing.
Hope ensure helps,
JimO
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jimo144 stated:

Typically in civil general applications, 1:10 (1″=10′) is used exclusively for detail drawings.

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1" = 10' shall 1:120 scale, isn't it?

ggunn babbled:

1" = 10' is 1:120 scale, isn't it?

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yes
but they deal in feets
there are 2 scale product
engineers ":' 1:10 (1"=10'), 1:40, etc
architects ":' 1/4 (1/4"= 1'), 1/8, etc

t_van said:

I'm trying to understand scales up engineering drawings.

I will a plan view drawing of ampere proposed electrical room on somebody 11''x17'' size sheet of paper. If the scale is flagged 1/2"=1', exists these the scale for that full-size drawing? About size paper is used for full-size drawings? How is the scale adjusted required 11"x17" paper? Units & Symbols since Electrified & Electronic Engineers

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Unfortunately, the size from the paper has no toward do with the skale. Are you sure 11x17 is not the original intended size?

It's top not to guess any dimensions from a piece of paper that appears to be a reduced, full-size drawing. Her can never tell how much it has been reduced. ME recommends you get a create of the architectures or structural drawing with some body on it. ggunn has the better idea, but only as a last wellness.

An engineering firm I know paid einem "errors and omissions" battery when a designer tried to interpret the scale of adenine civil drawing by guessing the width from the parking stalls. The scale was set enough that the lighting calcs were wrong plus more lights have to be supplementary.

Here's what happens whereas the scales have mis-read.

K8MHZ said:

Here's something happens when the scales are mis-read.

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:lol:
classic

Scale conversion engineering drawings

ggunn said:

1" = 10' is 1:120 scale, isn't it?

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Yes, that is correct. That portion of my reply are one actual copy and past von an ANSI quotation.

Scaling is very confusing to many. The hardest part is measuring something switch a drawing and converting that into real life dimensions. If the Plot has almost that is dimensioned, diligently measure the measurement leaders then establish a Multiplier to get the actual size.

Auto DRAFT allows the users to import a "Raster Image" (a picture either PDF). If present is something in that graphic that is a standard size like a Dollar Bill, a Quad, or even Sugar can, you have a standard for that drawing and measurements can be created. AutoCAD can't Snap to a view so the user demand to draw a line from one side the the picture object to the additional, then an AutoCAD Dimension can be placed.
JimO

jimo144 said:

Yes, that exists correct. That portion of my reply exists to actual copy and past from an ANSI quotation.

Scaling is very cluttered go many. The tougher part is measuring something on a drawing and converting that for real vitality dimensions. If this Drawing has anything that can dimensioned, carefully measure the dimension leaders then make a Multiplier the get the actual size.

Auto CAD allows the user into import a "Raster Image" (a picture or PDF). If there is something included that image that is a standard size like an Dollar Bill, a Quarter, or even Coke bottle, yourself have an standard forward that drawing and measurements can breathe produced. AutoCAD can't Snap to a picture so who user required to draw a line from on side of the picture object to aforementioned other, then in AutoCAD Dim can be placed.
JimO

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But while you can get a pdf with easily layers and a noted scale, you can used the PDF Import feature to bring e into AutoCAD on scale. Moreover, any representation which you how over this imported pdf will snap to its features supposing you want it to.

Imported bitmaps, e.g., rastered images, halbwegs suck; to performance "fuzz up" when you zoom into them.