Jeans Technicos/Techniques - Further Disasters in Flat-Felled Seaming!

Jeans techniques are challenging my sewing skills, however I've also get just a few other...  sewing projects going. I refit B5526, got another shirt partially cut out of it, and began working on fitting a new (to me) tee shirt, the Hot Patterns Weekend Sunshine Top .

It's multi-tasking like this, that keeps me enchanted by sewing!
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Oh dear, my journey into the land of the flat-felled is not following a smooth - or straight - road
Woof! Look at that topstitching line!!!! You can practically hear the sound effects 
as the needle moves back and forth, right?
Believe it or not, I was focusing
on the toe of my presser foot lining up as I sewed,
but it looks like I need to find better visual  guidelines.

This light-weight denim moves around
Did I actually trim one edge too close?

A few posts back I shared my challenges when it came to sample sewing flat felled seams in a light/medium weight denim . I gave it another shot tonight, this time using both a heavy levi-type weight (the pale/washed out blue sample above) and some of the light/medium weight (that indigo blue with the scrolly rose design over on the right). I thought if I skipped the glue stick I used last time, to hold the tucked under seam in place, I might avoid the needle-jamming problem I had before. I also thought that if I simply sewed a wider gap between the original seam and the topstitched one, I could get a nice straight seam line and avoid the problem of the raw edge not being caught in the top stitching and peeking out.

Hummmm...

1) It does appear that the glue stick was the culprit in the jamming. I have certainly used glue sticks successfully in the past for a variety of projects, as have many other sewists, but perhaps when working with heavy weight fabric, or maybe it's the heavy denim needle, that may not be a good idea. So, one problem solved, it didn't jam.

2) I'm not, however, making progress on the straight-line front. My topstiching was, if anything, even more crooked!

3) In addition I continued to have problems with a raw edge of fabric poking out from under my flat felled topstitching. I can't seem to get the longer edge to fit in underneath the trimmed seam. Am I trimming it too close to the seam? I wonder if that is causing this problem.

Next....

a) I'm going to focus on this flat-felled seam tutorial from Oliver + S, and see if I get any new ideas about what is proving to be surprisingly challenging for me.
b) I wonder if I should go for a wider seam allowance. I've been sewing a 5/8 " seam, typical for wovens, and trimming one seam down to about 1/8". Should I cut a 1" allowance and then trim the one seam down to.... maybe something closer to 1/4"? I might try the 1" seam on two different samples - one with a 1/4" trimmed seam and the other with the 1/8 - or at least very closely trimmed seam edge.

But first I'm going to read more about what others have to say about this type of seaming. In addition to the Oliver + S article, I'm going to look through the Pattern Review article "Make your own Jeans, You Can Do It"  and also in my all-purpose Readers Digest sewing book.

Can you imagine how much more enchanted I'm going to be with sewing, on the day when I've resolved these challenges?

Jeans Technicos/Techniques - Flat-Felled Seams Fall Flat, when it comes to Sewing Denim

In my last post, Summer of Jeans Sewing, I described my plan for learning to sew and fit jeans. I began by working on my flat-felled seam techniques.

How hard could that be? I've sewn these seams in light weight cotton a few times.
Hummmm, guess who needs to keep working on her flat-felled denim sample sewing? 

I started out with a review of flat-felled seams, In which Russell Conte of Sewing Arts Center shows us how to complete a Flat Felled Seam to give your garments a fresh clean professional look.
Check it out at http://www.youtube.com/watch?v=klyJYE4OcM0''


Another Resource to study http://oliverands.com/blog/2011/01/flat-felled-seams.html

Frankly, I figured i'd spend longer listening to Russell's well-done youtube video than I would sewing my first sample.

Har de har har!

~ ~ ~

Entonces, I got out my bits and pieces and got the sewing going.

Whoops! You sew WRONG Sides together when sewing a flat-felled seam.
Time for a visit with Auntie Seamah Rippah.

That's right
Wrong Sides together, and ready to seam

Remember to use
Jeans Needles

Seam
Press to embed stitches on both sides of sewn seam
Butterfly open and press on both sides

Study worn-out Ready to Wear Jeans
Oh, I see I want the topstitching on the back edge
Actually - in my sample below - I did it the other way with the
topstiching on the front edge.
But that was the least of my challenges

I'm going to trim away here,
As close to the seam as I can get
But just on one side

Deciding that I wanted to have topstitching
on the right of the Front seam - opposite of the Ready to Wear pair above!-,
 I trimmed the front
Seam Allowance, so that the Back Seam Allowance
Would wrap around, over, and encase the front
which would mean I'd topstitch on the front Seam Allowance edge

Here, I folded the back seam allowance
over and around the front

Then glued it down so the seam wouldn't move
while I topstitched

How close to the seam allowance did the
Ready to Wear folks do their topstitching?
An eighth of an inch.
No - it didn't occur to me until I made my graph paper model (below)
that they probably didn't sew a 5/8 inch seam allowance like I did!

OK, that means I sew here

I'll position my left presser foot toe on top of the
seam, to keep my line of topstitching straight

Hope this orange topstiching thread is the right stuff
It's Gutterman, heavy weight topstitching, but it doesn't
specifically say it's for jeans....

Hummmm No matter what I did when I started (and re-started)
The fabric didn't move well when I began sewing
But, as you see on the scrap piece, it sews fine on a single layer
And I've sewn this same fabric into shorts, so I know it should sew up
Is it the glue?

Uh oh.... That eighth of an inch topstitching ddn't really catch the seam

I added a second line of topstitching to fell the rest of the seam
And golly, my topstitching wasn't straight, though I thought I was
watching the presser foot toe carefully on both stitching passes

Time to get out the graph paper and think this thing through!

Gee, it sure sounded easy before I actually tried it!