Did I do the scaling right on this drawing ?
I just want to make sure I did it right.
if the scale is 1:300 then 33.33 is.... ?
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Re: Did I do the scaling right on this drawing ?
What units are you using? Also, what format of paper are you using ?
Are you units in mm, cm,m, km, inch, foot, yard, mile?
The reason I ask is because if you have a dimension of a 100mm on a drawing that is scale 1:300 then when printed you should measure 0.3333mm. That means also that 33.33mm would measure 0.1111mm. So unless your units are on the larger side of the spectrum (m, yards) you would need a calipers to measure something on the drawing.
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Re: Did I do the scaling right on this drawing ?
A4, mm.
Well basically I needed to put a track on the field for something so I went out and measured the rough dimensions of the buildings ( in meters ) and then I placed the track.
Now I need to represent that on a A4 paper.
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Re: Did I do the scaling right on this drawing ?
Andrei,
It's early and I haven't gotten my cup of coffee yet but.....
if a track is 100m on a scale of 1:300 then it would measure on the paper 0.33m = 33cm.
An A4 is 210x297mm.
Which then makes me wonder how you can fit 100m on a piece of paper that is less then 30cm without the scale being 1:500 ?
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Re: Did I do the scaling right on this drawing ?
the track in real life is 30m. I used a online converter tool (scalemodelersworld) and did 30m, 1/1 scale to ...mm, 1/300 scale.That got me 100mm.So I used 100mm to draw the track and put the scale 1:300 in the table text
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Re: Did I do the scaling right on this drawing ?
Andrei Cosmin wrote:
the track in real life is 30m. I used a online converter tool (scalemodelersworld) and did 30m, 1/1 scale to ...mm, 1/300 scale.That got me 100mm.So I used 100mm to draw the track and put the scale 1:300 in the table text
The mind boggles.
Never ever put a dimension on a drawing that doesn't depict the true dimension of the entity that it depicts.
People won't go and look at your dimension and then check your scale to see how much they have to multiply it by.
If they measure it with a ruler THEN and only then they'll look at your scale.
You know what exception there is to that rule?
NONE. There isn't one.
Good gracious me, I feel old. What do they teach kids these days?
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Re: Did I do the scaling right on this drawing ?
Ok, so i need to put the actual dimensions that i measured on the drawing
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Re: Did I do the scaling right on this drawing ?
Andrei,
Yes, which is easy to do if you draw teh entities 1:1 because then any CAD program will put the dimension on it as it has to be and the program is smart enough to adjust the size of everything according to the scale you ask it to be depicted.
No matter if it's model/paperspace (2d CAD programs) or if it's 3d models that get depicted on a drawing.
The only ones that I've seen that still dare to not draw 1:1 are architects. From them you can get drawings where nothing is 1:1, where some elements are even designed in scale and then depicted in a view (or viewport, depending on program) in a different scale then the actual scale of the drawing or the scale it was designed in. *shudders thinking about it*
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Re: Did I do the scaling right on this drawing ?
Technically, for me, drawing is the 2D slddrw file we print on paper.
The sldprt and sldasm are model, not drawing.
So we model in 1:1 and scale the model in drawing to fit paper.
AutoCAD is another story.
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Re: Did I do the scaling right on this drawing ?
Frederik,
2d CAD should be the exact same story. One draws in modelspace 1:1 and then adjust the scale of the viewport to fit the papersize.
Not doing so would be as nonsensical as drawing the item directly in a SLDDRW instead of making the parts and ASM's so as to create a DRW.
The only exception to it is if the DWG is created by converting a SLDDRW to a DWG. In which case it should be obvious because the title corner and borders are also in modelspace instead of them being in paperspace.
This reminds me of the time I once had to explain modelspace vs paperspace to an architect even although he had been using Acad for years.
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Re: Did I do the scaling right on this drawing ?
You will drop dead if you know how many AutoCAD user don't know anything about paperspace.
Did I say I hate architect drawing yet? Oh maybe not.
I just don't want to confuse OP with info doesn't apply to SWX.
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Re: Did I do the scaling right on this drawing ?
Frederick Law wrote:
....
I just don't want to confuse OP with info doesn't apply to SWX.
Fair enough
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Re: Did I do the scaling right on this drawing ?
Andrei,
If you share you files you will get a much better answer faster. If you modeled the track and everything else at 1:1 scale then getting it to fit on your paper is such an easy thing, just change the sheet scale until it fits to your satisfaction.
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Re: Did I do the scaling right on this drawing ?
I used this scale converter.
Online Scale Converter Tool - Scale Modelers World
convert m, 1/1 scale to mm 1/300 scale.
The track needs to be 30m, I used that scale converter and got 100mm. I used the 100mm for drawing.
same with all other dimensions.
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Re: Did I do the scaling right on this drawing ?
Andrei,
Okay,now were getting somewhere. You had omitted some information in the beginning because you thought we knew what you knew.
E.g.: that you're making a drawing of an item that was to scale.
Which would be the reason that you use that model scale converter.
The true dimensions of what has to be made are 100mm.
It is 100mm because it's a scaled down version (by a factor 1/300) of something that in actuallity is 30m
In which case it is correct to have the dimension of 100mm on the drawing but it isn't correct to then mention the scale 1/300 on the drawing except perhaps as a remark to notify that the RL item is 300 times bigger.
To make the item, the one making it couldn't care less what the dimensions are of the actual thing but only what the dimensions are of the item to be made.
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Re: Did I do the scaling right on this drawing ?
Simply put:
You start with sldprt file.
Draw/sketch everything 1:1. If you measure 30m, draw it 30m. Always.
Then you make a drawing: slddrw from the part.
Now you scale in the drawing to fit your paper size.
Never ever scale the part or assembly. Please.