Math Guru’s
 

I have the Antelope Canyon Pattern and it’s too small for my taste, 74 in square. I would like to enlarge the pattern to make it King size.

https://laurieshifrindesigns.wordpre...quilt-pattern/


As listed in the fabric requirement's on the back of the pattern, this uses 2.5 in and 1.5 inch strips. What size should I increase each strip? I have googled my brain out and only found 1 article regarding enlarging it to king size, but she was the long armer, not the maker.

Here is the photo of the king size version.

http://mmmquilts.blogspot.com/2018/0...pe-canyon.html

I don't think I've had enough coffee yet. My first stab at this is if count the number of rows going up -- from the picture I got 32 (which may not be correct). You already have the seam allowances built in so don't need to worry about that!

If 32 rows = 74", then adding 1/2" to each row (regardless of size) should be 16" (32/.5 = 16) for a square of 90 (74+16).

Likewise, if you went 3/4", I get 24", or 74+25 = 98" which for me would be King sized.

You would also need to add some to the width of the strips but brain has not fully digested that part :) I am only 2 cups of coffee in for the day, but I think that will work.

Edit: Second look, maybe you don't need to add anything to the length of strips by the way it is constructed. I'd have to draw it out to verify but I think the .5 or .75 is a good head start!

You could use equivalent fractions. The original Antelope Canyon is 74" square and you want it to be about 110" square. that would make the 2 1/2" strips 3.716" wide and the 1 1/2" strips 2.229" wide. If you rounded up it would be 3 3/4" and 2 1/4". If you rounded down it would be 3" and 2".

Got a fresh cup of coffee but it's not doing much good.

I like quiltedsunshine's approach. Helps me with my numbers, from the "count the rows" that I did, for 1" added, I get 106 square -- which is maybe more your idea of kingsized. I general figure 3 yards square wihich is 108.

Still not sure on whether or not my technique would result in a square or a rectangle...

The designer said it was created as four log cabin blocks.

Maybe start looking at that way. I can see the "sashng strips" separating the four quadrants. Spectacular design

Yes, these are 4 identical quadrants……Should I add on length in addition to width?

How about adding half blocks on all sides instead of increasing
the size of the strips? Like extend those arcs.
I think the design tends to get lost when increasing the size of the
strips. Talking from personal experience. Looks fine when it's flat
or hanging on a wall but on a bed it's different. Just something
to think about. :)

Increasing each cut fabric by 1/2" would make the quilt a fourth larger. A 1" increase would make it half larger. That is my thinking. I don't do math unless it involves money. LOL

I think you have to enlarge the same percentage in both directions.

It looks like the original pattern uses 2.5 inch strips and 1.5 inch strips, so 2 inch and 1 inch finished. So each of the 4 large squares has 11 2-inch strips and 12 1-inch strips, for a total of 34 inches. The length and width of the quilt is then 2*34 (two large blocks) + 3*2 (2 borders and middle sashing), which comes to 76

if you make them finish at 3 and 1.5 (that is, make them 50% larger), the squares will be 33+18=51 inches, and the quilt will end up at 2*51 + 3*3 = 111 . That'd give you about 15" overhang on a king if it's 80" wide.

For lengths, just as an example: If the original pattern piece is 2.5 by 10.5, your enlarged version would be 3.5 by 15.5 (I think): you'd make the 50% percentage adjustment to the finished size of the piece, so 2 by 10 becomes 3 by 15 in this example, and then add the seam allowance back in, to get 3.5 by 15.5

Does that make sense? I've never done this, but it seems like a valid approach.

No math from me! I am constantly amazed what importance, and difference color choices make. The smaller one really grabbed me with that Wow feeling. With the large one, I struggle to see the design, and looking at the last pic it seemed to lose that wow feeling. I often struggle with color choices!