How to Size a Photo to Cast? - International Association of Penturners
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Old 06-07-2018, 04:12 AM   #1 (permalink)
wm460's Avatar
Join Date: Mar 2008
Location: Tennant Creek, Northern Territory, Australia.
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Default How to Size a Photo to Cast?

I was asked to cast a couple blanks with pictures in them.
I have never done any thing like this before and am kinda lost on how do you work out the size of a picture on a computer to fit a tube (Seirra) before you print it out?
05/2004 -05/07/2010
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Old 06-07-2018, 06:32 AM   #2 (permalink)
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Join Date: Apr 2015
Location: Fairfield, Maine
Posts: 1,547
Photos: 10


Fred Wisson (AKA PTown Subbie) sells templates for this, as well as a jig to assist in rolling and gluing the graphic to the tube. Here's a link to the templates:

There's also a formula for calculating the dimensions, which I have forgotten--I'm sure someone else will chip in with it.

Fairfield, Maine
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Old 06-07-2018, 10:18 AM   #3 (permalink)
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Location: Ottawa, Illinois
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If your not in to math equations just wrap the desired tube with piece of paper or tape and then use a razor blade and cut a line from top to bottom of the tube and peal it off. This will be the exact size you need minus a little for the overlap. Measure it with a ruler and use MS Word to size your image. It will tell you the image measurements as you enlarge or shrink it. Then just print a sample on paper and compare it to the size you need for fine tuning. That way your not wasting decal or label paper.

I just looked at Fred’s link. He has done the hard part for you and listed the measurement size for each tube. All you need to do is use that number to resize your image on MSWord.

Last edited by JohnU; 06-07-2018 at 10:22 AM.
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Old 06-07-2018, 10:22 AM   #4 (permalink)
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Join Date: Jun 2007
Location: Red Deer, Alberta, Canada.
Posts: 1,335
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Copy and paste the photo using MS Excel or MS Word.
Resize the photo using Picture Tools.
Print a test copy to check for pen tube fit prior to printing final photo on decal
paper or a Weatherproof Matte ONLINE Label.
Be sure to seal the ink after it has dried.

Innovation is the process that renews something that already exists and not, as is commonly assumed, the introduction of something new.
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Old 06-07-2018, 04:17 PM   #5 (permalink)
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Join Date: Sep 2017
Location: Spring Branch, TX
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I got this from a reference file on one of the FB groups.

Converting inches to pixels (depending on resolution):

Resolution of 72 pix/inch = 95 x 164 pixels
Resolution of 150 pix/inch = 198 x 342 pixels
Resolution of 300 pix/inch = 396 x 683 pixels
Resolution of 600 pix/inch = 792 x 1366 pixels
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