This is the third and final part of this tutorial. Here are the links to parts
one and
two.
Now we are ready to start assembling the bag.
If you haven't made the first seam on the side panels and the body of the bag, do so now. Also do this for the lining, and remember to iron your seams! Next sew the pockets where you want them. I positioned my outside pocket so it would sit just above the fold for the bottom of the bag.
Next, continue to sew the rest of the bag and lining together. Warning: This part is a bit awkward because you are no longer working on a 2D object. Also, the corners can be a bit tricky. The nice thing is, they are all at the bottom of the bag, so no one should notice if you mess up a bit! I would encourage you to press your seams as you go.
Now it's time for fit the bag and lining together! Place the lining inside the bag with the right side of the fabric facing in and together (see picture for reference). Make sure your seams are lined up and pin the two pieces in place before sewing them together. Also, leave a gap so that you can turn your bag right-side out.
This is the fun part! Working carefully, turn your bag right-side out!
Next, push the lining back inside the bag and pin the edge in place, especially the gap. Topstitch around the whole thing to help it lay flat and to close up your last seam.
As you can see, I did two layers of top-stitching.
Now it's time for the straps! Remember the reinforcement strip we made all the way back in Part II? It's time to use it! This method of attaching the straps works, but it is a little awkward as you are trying to sew through 5 layers of canvas at any given time. Basically, I sandwiched the straps between the reinforcement strip and the bag and stitched around the outline of the strip. For added reinforcement I did a box stitch around the base of the straps, where they attached to the bag.
Congratulations! You're done! Enjoy your new bag. :)