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Post Info TOPIC: Help in scale


Sergeant

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Help in scale
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Need a little help please,
I have searched to find out info on how to calculate the scale size.
Nothing came up.
So I will pose my question  -- how does one calculate scale from an actual item?
I know there must be an exact process.
Thx in advance.
Marty

edit in  -- now the word formula enters my mind.
Is there a formula for dertermining scale?

-- Edited by Marty on Thursday 3rd of February 2011 05:07:46 PM

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Commander in Chief

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Hi Marty,  if your working in say, 1/35 then you take the dimension and divide it by 35, ie if the original length is 1268mm then  the model length is 1268/35= 36.23mm

There comes a problem when the drawing you are working to does not have dimensions and is not fullsize.  You have to check a length you know from the fullsize such as the length, measure the length on the drawing and divide the fullsize length into the measured length.  That gives you the drawing scale. If that works out at say 1/30 then the drawing sizes need multiplying by drawing scale/model scale. So for a 1/35 model = 30/35 (0.857) and a 1/72 model = 30/72 (0.47) etc.

I'm messing about with spreadsheets at the moment so I'll have a go at putting one together to scale from drawings to whatever scale is needed.

Chris. 


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ChrisG


The cure for boredom is curiosity. There is no cure for curiosity (Dorothy Parker)


Sergeant

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Thank you Chris.

The full scale size or actual size is 43.0 inches. (Known)
And my finished item is 8 7/8 inches or 8.875 (Known)
The picture I worked off of is very close to my end product.

If I understand you right I divide 8.875 by 43 which equals 0.2063
So that must mean I end up with a 1/20th scale.
Or have I missed something? Because it seems to be larger.

My actual scale information does not specify where the overall length is taken from, but that is the only length info provided.
And my end results are not in as exact detail as your members work here, but it is a first attempt at anything like this.

Marty

-- Edited by Marty on Thursday 3rd of February 2011 08:56:31 PM

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Commander in Chief

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Hi Marty,

I  make the scale to be 1/4.845   

___1___
43/8.875

Just got home from pub, will check it out when I've slept on it  confuse

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ChrisG


The cure for boredom is curiosity. There is no cure for curiosity (Dorothy Parker)
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Legend

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Marty, Mr Tanker appears to be correct, despite having just returned from the pub.

If we do some rounding of the numbers, you have a nine inch dimension on your model that represents a real-life 45 inch dimension. So one model inch represents five real inches, which gives a scale of 1:5 or 1/5. That figure is very close to Mr Tanker's figure of 1/4.845.

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Sergeant

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Thank you Gents.

As you can determine my skill at number conversions are almost comical.
I had realized later that when I said 1/20th I was missing something.
If the 20 roughly represents 1/5th of a hundred then there I would have had it.
And I agree rounding the 1/4.845 off to 1/5th would make it easier.

So then, again thank you for your time.
Marty



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Legend

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LT was thinking of a spreadsheet - probably not a bad idea, there is room for confusion doubt and concern amongst newcomers. In case he is a victim of the grape/barley juice here's a converter thing.

Attachments
Scale.xls (12.0 kb)
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Facimus et Frangimus


Commander in Chief

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Rectalgia wrote:

LT was thinking of a spreadsheet - probably not a bad idea, there is room for confusion doubt and concern amongst newcomers. In case he is a victim of the grape/barley juice here's a converter thing.



Hi Rectalgia,  I'm now compus mentis.  My poor old Works software won't read your file, could you repost as a .wrk and/or .xlr?

It was barley based, drunk in the Drill Hall that Joseph Ruston built and alot of Lincolnians went through before going to the trenches.

If the comedians weren't 90 minutes late I wouldn't have drunk so muchno 

They didn't have 'Little Willie' beer there!

 



-- Edited by LincolnTanker on Friday 4th of February 2011 11:45:52 AM

Attachments
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ChrisG


The cure for boredom is curiosity. There is no cure for curiosity (Dorothy Parker)


Sergeant

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EXCELLANT, thank you.
I had tried to edit my post under --Vickers MG MK1 Paint--- to read the corrected measurement of the replica gun but I was not allowed to.
So that error will have to stay.
Have been able to download the information from Rectalgia, but am having problems getting what LT has placed.
Will have another go at it when time is in my favour.
And again, thanks for the much needed help.


{It was barley based, drunk in the Drill Hall that Joseph Ruston built and alot of Lincolnians went through before going to the trenches.}

Anything that is drank in a drill hall that bares the history of the sacrafices of freedom, is a drink well worth drinking.
Had I been there with you the first glass raised would have had these words attached --To Your Regiment.

Again, thank you for the help.





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Legend

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Hi LT - I haven't those file types available for "Save As" - the previous .xls is supposed to be in compatibility mode and Excel 1995-2010 should have no trouble with it. Unfortunately M$ have stopped supporting some of the competitors formats but here are some more to try. No loss in any event - your spreadsheet covers the same ground - a bit more in fact since it specifically handles other component scaling.

Attachments
Scale.ods (4.3 kb)
Scale.xlsb (8.6 kb)
Scale.xlsx (9.7 kb)
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Facimus et Frangimus


Commander in Chief

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Thanks Rectalgia, Google spreadsheet opened one of your attachments, Works wouldn't open any. 

I'll have to get up to date some time  biggrin



Just googled your name,.... and I thought it must have been the name of a Roman general!!

-- Edited by LincolnTanker on Friday 4th of February 2011 04:51:40 PM

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ChrisG


The cure for boredom is curiosity. There is no cure for curiosity (Dorothy Parker)


Legend

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LincolnTanker wrote:

...Just googled your name,.... and I thought it must have been the name of a Roman general!!


Nah, it's just what people call me - well, most use the Anglo-Saxon version of same but that is sort of seriously short of gravitas IMO.

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Facimus et Frangimus
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