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Author Topic: scaling plans  (Read 877 times)

class37

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scaling plans
« on: October 24, 2009, 09:53:05 PM »

Hi all,

can I just check that I have something right ?

I have read loads of the posts on this, and I think I have got it right, but just want to check before I start copying.

I've just received a set of ship plans at 1/100 scale, and I want to photcopy them to 1/72.

am I right in thinking that to get the new setting I divide the old scale [100] by the new scale [72] to get a ratio of 1.38 recuring.

so I copy the plans at 138%, and this should result in 1/72 scale plans.

then take a known dimension from the data sheet, measure on the original 1/100 scale plan, and do the same on the 1/72 scale plan, and the resulting measurements should be at 1/100 and 1/72 of the original real dimension.

many thanks in advance

cheers

alan
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gribeauval

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Re: scaling plans
« Reply #1 on: October 24, 2009, 10:11:14 PM »

Close enough. 8)   (It should be 138.888885%)

Download this little program it makes it easy and does all the calculations for you.



Mike
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class37

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Re: scaling plans
« Reply #2 on: October 24, 2009, 10:24:15 PM »

Hi Mike,

many thanks for that.

I think the copiers at work on go to 1%, but with my building that should be close enough !

just going to check out that link then I'll have a go at the plans.

good thing it's an extra hour at work tonight !

cheers

alan
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class37

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Re: scaling plans
« Reply #3 on: October 25, 2009, 01:44:11 AM »

just to add all came out great, and new set of working plans is now to hand.

thanks

alan
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