Week 3 of the Cosmo Bag Sew Along- Construction & Customizing

Final Week of the Cosmo Bag Sew Along!

We’re rounding the corner on the Cosmo Bag. We hope you’ve enjoyed Rhonda’s expert instruction. Remember you can always come back to the blog any time to go over details or leave a comment on a problem you are having. I will answer them quickly.  You can purchase the pattern now if you haven’t done so already and stitch up a fun bag.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Now that we’ve attached the pockets, the hard part is over and the real fun begins as the bag will now begin to really take shape.

There are 3 notches on the Cosmo Bag that are very important and they can be found on the bag front and back pattern pieces. In the picture below, you see the 3 notches marked A, B, and C. The 3 notches will actually help form the bottom of the bag.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

I have marked the notches on my bag so that they are a little easier to see.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Begin by folding A up to meet B.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Now bring A and B up to meet C.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Once the 3 notches have been folded together, stitch the notches down by stitching first, 1/4″ from the edge and then stitching again, 1/2″ away from the edge.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

As you can see below, the folded notches will form a downward facing pleat.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Place the front and back of the bag together and stitch the side seams and the bottom seam with a 1/4″ seam allowance. Do not stitch the corners closed.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Turn the bag to the right side and push out the open corners. Press seam allowances open.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

On either side of the side seam, mark 1 1/4″ away from the side seam. You can see that I placed pins at the 1 1/4″ mark below. The marks are important for zipper placement.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Unzip the zipper and press back the ends to the wrong side of the zipper. Be careful to not completely unzip the zipper since we are using a separating zipper. Once we have pinned the zipper to the top of the bag, we can unzip it, but in the meantime, leave it partially zipped so that you don’t sew the wrong side to the bag.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Pin the right side of the zipper to the right side of the bag, beginning and ending at the 1 1/4″ marks. Sew the zipper to the bag with a 1/4″ seam allowance.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

We will now attach the lining to the top of the bag. Be sure to allow the zipper ends to hang into the bag. As you can see below, it is easy to pinch in a pleat into the zipper, so pay close attention to keeping the zipper flat.

Sew the lining to the bag with a scant, so not quite a 3/8″ seam allowance.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Once the lining has been attached to the bag, clip the curved seam allowance.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Pull the lining to the right side. Press the bottom seam allowance in 1/4″.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Edge stitch the bottom of the lining closed.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Push the lining into the bag and press along the top edge of the bag.

To help hold the lining in place, I did a stitch around the top of my bag.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

The zipper is installed, and the top of the bag looks wonderful.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Our next step will be to install the tabs for the straps and d-rings. As I was cutting out my pattern, I noticed that an extra set of tabs was included in the pattern, so 2 #10s, and 2 #11s.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

You will only need 1 of each of the patterns, so discard the extra set.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

Since I am accenting my bag with the leather. I have cut 2 sets of #10s and 2 sets of #11s out of the leather. If you are cutting the tabs out of the fabric, you may cut 1 side in the exterior fabric and the other side in the coordinating fabric. If you are cutting your tabs out of fabric, they will need to be interfaced. Since I am using leather, I will not be interfacing the tabs.

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

In our final post for the Studio Kat Cosmo Convertible Bag, we will sew up the tabs and attach them to the bag. We will also attach the clips and d-rings and finish up the straps. So we are almost there!!!

If by chance you have not purchased your pattern, but think you might like to give the bag a try, you can find the pattern HERE on the Sew News website.

Also, be sure to visit the Studio Kat website to purchase your hardware. Kat makes shopping so easy!!!

Until next time….

Sew On!!!

Rhonda Buss

www.sewbussted.com

 Week 3 of the Cosmo Bag Sew Along  Construction & Customizing

About Jill

I write for the Sew News and Creative Machine Embroidery blogs. I love sewing, vintage and would love to get a comment from you!
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3 Responses to Week 3 of the Cosmo Bag Sew Along- Construction & Customizing

  1. Pingback: 7 Bag Making Tips that WILL help you make better bags…

  2. Sandi Shoup says:

    I’m not seeing week 4 of the Cosmo bag. On week 3, it states this is the final week at the top but it’s all of week 3 and ends at the tabs.

    Thank you

    • Jill says:

      We had a few delays on week 4 but it will be up later today! Please Stay Tuned! I’ll make an announcement as well.