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The Westcott C-Thru Proportional Scale is used to calculate enlargements or reductions from 10% to 1000%, from 1" to 100". Made of tough plastic, it has large, easy-to-read markings.
Available in a variety of sizes, the Proportional Scale can be used for a variety of applications, from quilts to photo enlargements and more. It provides the number of times of reduction as well as the percentage of the enlargement or reduction. The calibrations for fractions smaller than 1" are printed in blue.
Note — Formerly known as C-Thru, the products you receive may be labeled with either the Westcott or C-Thru brand name as C-Thru company makes a transition to new ownership. Rest assured, the quality, features, and fabrication will remain the same.
® Westcott is a registered trademark. ® C-Thru is a registered trademark.
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(based on 11 reviews)
of respondents would recommend this to a friend.
Reviewed by 11 customers
Displaying reviews 1-10
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from West, Texas
Comments about C-Thru Proportional Scale:
I bought all three of them. Use them in quilting and paintings. Great for finding ratios, to make geometric designs larger and smaller. Highly recommended.iii
Bottom Line Yes, I would recommend this to a friend
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I've had more than one of these since art college.
from St. Josep, Mo
I use a proportion scale all the time. It's invaluable for a multitude of things both large and small. Get the big one the small is too small.
from Northfield, VT
Very fast and easy to use.
Probably my new best friend
By Grey Fox
from Denton, Tx
I got the 5 inch wheel. I've never used one of these before, but I think it's a very useful tool. It's good sturdy material with all the measures clearly marked. My only real problem is some of the high conversions really blur together cause there's so many little tick marks crammed into a small space. So it's probably better to go for one of the larger wheels, especially if you have any vision problems.
Excellent tool for the work I do
from Spokane, WA
I do enlarging and shrinking of original artwork in my cardmaking work and this is really indespensible. It is fast to use, easy to read and perfect in every way. It is made of heavy material that stands up to carrying it with me to the copy store. Absolutely perfect design! I couldn't believe how quickly it arrived after I ordered it online. First rate customer experience.
All your products and service are great
from Vienna, VA
I use this product in my art and it is really helpful comparing original reference with my canvas size.
(1 of 1 customers found this review helpful)
Very valuable product, fits my needs!
from Fraser, MI
Scale down projectsEasy to useFound nothing negative about product
Perfect for my job!!!
from carroll iowa
I'd been looking for this product for a while. A local store was going to charge me the same amount for 1 that I paid for both of these. AWESOME DEAL!!
(3 of 3 customers found this review helpful)
Cleaver and most usful tool!
from Harrisburg, Pa.
Great tool for figuring proportions and enlarging a drawing. I do not know of any other product that can help to do this. It is fairly easy to use and is really on the mark. Only thing I might have liked to see was a few more explicit instructions on how to use it. Took a little playing around to really figure it out. Maybe it was just me. I really do like it and really have put it to good use.
from Muskegon, MI
Needed to scale projects I am working on.
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