Watson

I want to enlarge a 6 1/2" block to a 12 1/2" block.
I know how to actually enlarge the picture of the block but how do you figure out how to make the sizes of all the pieces?
As an example the 6 1/2" block calls for a 1 1/2 x 2 1/2" strip..... does that just become a strip 3x5"?
Watson

Tartan

When I need to enlarge a block to be sure of measurements, I tape graph paper together and draw out the enlarged block. I can then cut out the pieces along the lines and add the 1/4 inch seam allowances to all the pieces. A little time consuming but cheaper then getting it wrong and wasting fabric.

donna13350

What is the name of the block? There are probably patterns for it out there already enlarged. Most blocks are in multiple sizes...and then there are programs that can do this for you, but first we need to know the name or see a pic.

SuziSew

Generations has a section on how to resize a quilt block that maybe will help

https://www.generations-quilt-patter...hed-block.html

Kassaundra

You need to subtract the seam allowance, double what's left and add the seam allowance back. Straight forward when dealing w/ squares / rectangles but quite obnoxious when dealing w/ triangles. I generally draw it out as was mentioned and measure when dealing w/ angles.

EasyPeezy

I also use graph paper like Tartan.
Here's a video on how to change the size of quilt blocks.
https://www.youtube.com/watch?v=OXOsgiRNZmI

cathyvv

Unfortunately, I would be lost without using my EQ7, so can't help. But others will surely know!

bearisgray

Are you talking about enlarging a 6 inch finished size to a 12 inch finished size?

If so, this is what I would do with the 1-1/2 by 2-1/2 inch piece"

As Kassaundra already mentioned -

In the 6 inch block, the "finished/showing" size of the piece will be 1 x 2 (cut piece minus seam allowances)

In the 12 inch block, the "finished/showing" size of the piece will be 2 x 4 (doubled in both directions)

Then the seam allowances are added back on, so the cut size of the piece will be 2-1/2 x 4-1/2 inches.

Gay

You can always enlarge the picture to 12", cut out all the pieces,glue them separately to plain paper and draw the 1/4" seam allowances all around, then cut out the finished templates.

Watson

Thanks everyone, I think I get it. I knew you couldn't just double the sizes but I wasn't sure how you figured it out.

This is a sampler of 52 blocks and I wanted to some as 6" and some as 12", but I'm not sure now if it's worth it to figure out the math.

Watson