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Author Topic: More scale headaches  (Read 1863 times)

rickles23

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More scale headaches
« on: June 15, 2013, 02:57:46 PM »

Hi,
 
I am making some 1:72 scale cabins and decks.
 
My problem is that I have been given the plans in 1:200 scale.
 
The original ship was
 
L = 372' 7"
W = 49'
 
How do I reconvert the plans?????
 
Regards
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TailUK

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Re: More scale headaches
« Reply #1 on: June 15, 2013, 03:09:41 PM »

Multiply all dimensions from the 1:200th scale plan by 2.77 and that will be the dimension in 1:72nd scale.
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rickles23

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Re: More scale headaches
« Reply #2 on: June 16, 2013, 08:50:13 AM »

Hi TailUK
Thank you
 
Regards
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html

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Re: More scale headaches
« Reply #3 on: June 16, 2013, 02:36:10 PM »

I always multiply by the plan scale, and then divide the answer by the scale you are working in.
 
Brian
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rickles23

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Re: More scale headaches
« Reply #4 on: July 04, 2013, 09:24:41 AM »

Hi all,
 
I have done that but a lot of the results are like 2.4333.
 
So do I just use the first whole number?
 
Regards
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malcolmfrary

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Re: More scale headaches
« Reply #5 on: July 04, 2013, 09:35:05 AM »

Hi all,
 
I have done that but a lot of the results are like 2.4333.
 
So do I just use the first whole number?
 
Regards
If the units are mm, round to the nearest half mm, your example would give 2.5.
In all probability, you will find that this represents the thickness of the line on the drawing, and it is unlikely that you would measure from the original to anything tighter than the nearest mm anyway unless you use something like digital calipers.
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TailUK

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Re: More scale headaches
« Reply #6 on: July 05, 2013, 08:46:23 AM »

Hi all,
 
I have done that but a lot of the results are like 2.4333.
 
So do I just use the first whole number?
 
Regards

Round up or down accordingly.  For example if the number is say: 2.24 round it down to 2.0.  If it's 2.76 round it up to 3.  if it falls between 2.26 - 2.74 average it out at 2.50
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rickles23

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Re: More scale headaches
« Reply #7 on: July 05, 2013, 09:18:09 AM »

Thank you for your help.
Regards
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hammer

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Re: More scale headaches
« Reply #8 on: July 05, 2013, 09:00:22 PM »

Having built a few boats to a different scale than that of the plans. Not being good at sums (unless I have a in front ) I make a rule to the scale of the plan, marked in red. On the other side mark the scale required for the model, mark in black. 
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john44

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Re: More scale headaches
« Reply #9 on: July 06, 2013, 07:10:36 AM »

I get the plans enlarged, then I can measure straight from the plan,
much,much easier.

john
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