Rescale

[josve]

Hello guys!

I have a minor problem....
How do i rescale from 1:35 up to 1:25
I have a freeware model from bestpapermodels.com of a small house i would like to use in a 1:25 diorama
but it is in 1:35...

 

[ASC Mclaren]

When I rescale I start with the target scale (35), and divide that by the model scale(25). That produces the percentage change to print.
35/25=1.4
that is 140%
Test print a page that has a control part, that is a part that you know the size of. Measure that control part to verify that the scaling is correct. If it is, build away, if not; find the percentage difference of the control part to the prototype. Multiply that percentage to your previous number (in your case the 140%). Print that same page at your new target percentage. Measure the control part. Continue this until you can live with the results.

Remember that scaling up requires larger pages or tiling parts. I try to avoid scaling up more than 300%.

I hope to see the results of your build!

 

[Vahmp]

Hi

When I rescale I start with the target scale (35), and divide that by the model scale(25). That produces the percentage change to print.
35/25=1.4
that is 140%
Test print a page that has a control part, that is a part that you know the size of. Measure that control part to verify that the scaling is correct. If it is, build away, if not; find the percentage difference of the control part to the prototype. Multiply that percentage to your previous number (in your case the 140%). Print that same page at your new target percentage. Measure the control part. Continue this until you can live with the results.

Remember that scaling up requires larger pages or tiling parts. I try to avoid scaling up more than 300%.

I hope to see the results of your build!

Hi ASC,

I know this is a very old topic, but I really need HELP! lol
I saw your explanation to Josve's question.
My question is....
Does that math work for any scale?
See I build in mostly 2 scales.
Star trek ships 1/2500
Cars Bikes and Trucks 1/32

For the Star Trek ships do I divide 2500 with the scale the model is? Say 2500 divided by 700 = 3.571428571428571. Would that be 358% ?

And for cars.... 32 divided by 25 = 1.28. Would that be 128% ?

Thanks in advance for the help.
Vahmp

 

[Revell-Fan]

Hi ASC,

I know this is a very old topic, but I really need HELP! lol
I saw your explanation to Josve's question.
My question is....
Does that math work for any scale?
See I build in mostly 2 scales.
Star trek ships 1/2500
Cars Bikes and Trucks 1/32

For the Star Trek ships do I divide 2500 with the scale the model is? Say 2500 divided by 700 = 3.571428571428571. Would that be 358% ?

And for cars.... 32 divided by 25 = 1.28. Would that be 128% ?

Thanks in advance for the help.
Vahmp

Hi Vahmp,

if you have a template which is in 1/2500 scale and would like to enlarge it to 1/700 scale then you are correct, the template must be printed at 358%.

The same goes for the car in 1/32. If you want to resize it to 1/25 then you have to print it at 128%.

In both cases the model gets bigger.

If you want to resize a 1/700 ship to 1/2500 scale then you have to divide the source value by the target value: 700 / 2500 = 0.28. This means the 1/700 scale template has to be printed at 28% to be in 1/2500 scale.

The same for a car in 1/25 scale: 25 / 32 = 0.78125, so the template has to be printed a 78.125 % to be in 1/32 scale.

 

[zathros]

Hi Vahmp,

if you have a template which is in 1/2500 scale and would like to enlarge it to 1/700 scale then you are correct, the template must be printed at 358%.

The same goes for the car in 1/32. If you want to resize it to 1/25 then you have to print it at 128%.

In both cases the model gets bigger.

If you want to resize a 1/700 ship to 1/2500 scale then you have to divide the source value by the target value: 700 / 2500 = 0.28. This means the 1/700 scale template has to be printed at 28% to be in 1/2500 scale.

The same for a car in 1/25 scale: 25 / 32 = 0.78125, so the template has to be printed a 78.125 % to be in 1/32 scale.

Invaluable information.

 

[Vahmp]

Hi Vahmp,

if you have a template which is in 1/2500 scale and would like to enlarge it to 1/700 scale then you are correct, the template must be printed at 358%.

The same goes for the car in 1/32. If you want to resize it to 1/25 then you have to print it at 128%.

In both cases the model gets bigger.

If you want to resize a 1/700 ship to 1/2500 scale then you have to divide the source value by the target value: 700 / 2500 = 0.28. This means the 1/700 scale template has to be printed at 28% to be in 1/2500 scale.

The same for a car in 1/25 scale: 25 / 32 = 0.78125, so the template has to be printed a 78.125 % to be in 1/32 scale.

Hi Revell-Fan,

That's exactly what I needed to know. I build in 1-2500 and 1-32.
AND.....
I'm lousy at math. LOL Thank you so much, you've been a GREAT HELP!

 

[Vahmp]

Invaluable information.

I totally agree, Zathros!!!

 

[Revell-Fan]

You are always welcome!

 

[Vahmp]

Hi all,

HELP!!

Well I first looked for a place on my printers page where I could change the percentage and couldn't find any place to change it. So, I tried rescaling and printing Paragon's NX Refit from 1:1900 to 1:2500 thru Photoshop, and it was a DISASTER.It did not come out the correct size, what came out was a print that is in that range of about 1:400o scale. On an A4 page the whole print occupied a small corner of the page.
Where, or what program am I supposed to use the percentage to print out the correct size I want/need?

I managed to size it down by eye on photoshop, because I have an F-Toys NX 01 model. But that won't help me with any models that I don't have a physical one to use for size comparison

 

[mijob]

You can try it in gimp, inkscape to rescale it and use the calculation from RF in the earlier postings.

 

[Revell-Fan]

Hi all,

HELP!!

Well I first looked for a place on my printers page where I could change the percentage and couldn't find any place to change it. So, I tried rescaling and printing Paragon's NX Refit from 1:1900 to 1:2500 thru Photoshop, and it was a DISASTER.It did not come out the correct size, what came out was a print that is in that range of about 1:400o scale. On an A4 page the whole print occupied a small corner of the page.
Where, or what program am I supposed to use the percentage to print out the correct size I want/need?

I managed to size it down by eye on photoshop, because I have an F-Toys NX 01 model. But that won't help me with any models that I don't have a physical one to use for size comparison

I suspect a resolution issue. What exactly did you do?

 

[ennder]

I find that it is easer to convert the jpg to a PDF and then open it in a pdf reader and print it at custom %

here is the file converted to pdf

 

[zathros]

Ennder, I think you should upload that .pdf into the Resource Section, please. Models posted in threads get lost.

 

[ennder]

ok..... done

 

[Vahmp]

I suspect a resolution issue. What exactly did you do?

I think that's the problem too. paragon's NX Refit is HUGE, and when I divided 1900 by 2500 I got .76, which, like you said, would be 76%. I took that and ran it thru my printer from his PDF (changing the 100% ((Which I finaly found. lol) on my printer to 76) and got a big print out just the same. (I just done it again and there was a part on my printer saying 2% to fit on page (my pages are A4s).)

 

[Vahmp]

I find that it is easer to convert the jpg to a PDF and then open it in a pdf reader and print it at custom %

here is the file converted to pdf

I also ran your PDF right now, and it was reading 94% to fit on page, and when I tried to print this PDF I also got a big print. Which is not 1/2500 scale.

Either way... Both your's and Paragons's PDFs are High Res. So my problem stands....

 

[Vahmp]

So.... How to I reduce the size (maintaining 100% on page so I can scale down correctly?), to fit the page without losing resolution when I print at the scale I want?

 

[Vahmp]

This was done by eye in photoshop.
I have to redo it cause it is not perfectly scaled, it's a bit squished top to bottom.
(BTW the cardboard sheet underneath is A4)
And it is tedious at best to rescale each model, page by page like this.
Trial and errors end up being very costly here in Brasil.

 

[Vahmp]

You can try it in gimp, inkscape to rescale it and use the calculation from RF in the earlier postings.

Thanks for the advice Mijob, but I would really want to do it with programs I already have and pretty much know how to use.
I'm really trying to avoid installing new software. My comp isn't the best in the world. LOL

 

[ennder]

to make the pdf 1:1900 (from 94%) you would have to turn off the fit to page or shrink to fit. and click custom %.
once you do that enter 80.6 in the custom % box. this will reduce the size to 1:2500 scale. at this point, you just have to hit print