Proportional scale
 

I was reading the article on math today and they were talking about the usefulness of a proportional scale to increase or decrease pattern sizes. There is an app on iTunes called proportional scale for $1.99. It is easy to use. I had decided to order one and was looking at the different places I could order it when I saw the the information for the app at the bottom of the google search page. I am just putting the information out. I am not affiliated in any way.

We used to use a scale like that in graphics in the olden days. It was a circle that you could turn, lining up measurements to get the percentage needed to increase or decrease the size of the graphic. Those scales were a valuable commodity...

You can also get them at JoAnn's.
http://www.joann.com/search?q=proportional%20scale

Here's a chart that can be downloaded and printed. It's about 3/4ths of the way down the page and says:

Click here to download your free Proportional Scale chart.

http://www.generations-quilt-pattern...nal-scale.html

Thanks Karen for providing the link.

Thank you for the link.

Thanks for the link, Karen!

Thank you for the free link!

Thanks for this Karen

There's also this way to scale things bigger or smaller: http://www.quilterscache.com/StartQu...tingseven.html

Thank you ladies for the great information.

This is an interesting discussion. The drafting option makes more sense to me because I would rarely have a pattern on a piece of paper to be resized on a copy machine. Maybe I'm missing something here. It would seem like if you had to draft the pattern to get it on a piece of paper so you could then take it to a copy machine why not just use the second method to begin with.
Another question - once you get it on the paper and resized do you then measure all the pieces while on the whole sheet of paper or cut them out to make templates or measure them that way.
Sorry, I just can't seem to get my brain around the whole process. I understand the math part fine.