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Machine Talk => Sewing Machines => Topic started by: HappyCampers on May 03, 2022, 15:39:42 PM

Title: getting a flat zigzag stitch in thin fabric?
Post by: HappyCampers on May 03, 2022, 15:39:42 PM
my daughter has been playing with her new Janome 360DC and one thing we have noticed is that the zigzag stitch isn't very flat across its width (if that makes sense), it tends to pull the fabric together in a ruckle

Changing to 3 stitches per zig or zag reduces this a lot - not sure if this is inevitable or can be tuned out by something on the machine, my guess is simple tension adjustment wont help?

Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: Ouryve on May 03, 2022, 16:05:09 PM
Is she using the zigzag for finishing seams?
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: Helen M on May 03, 2022, 16:20:12 PM
Try loosening the tension. The numbers given usually work but that doesn't mean for every fabric! Also try reducing the foot pressure. I nearly always use '2' for everything rather than '3' which is I think the default setting.
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: So Chic on May 03, 2022, 18:49:23 PM
Is your daughter using the right foot with a zigzag stitch to finish seam edges? 
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: Ouryve on May 03, 2022, 19:13:25 PM
Jane does struggle with this with fine fabrics, no matter what I do with the tension and even using finer thread. One of the reasons I caved into the overlocker want! Before Bernie arrived on the scene I used more Jane friendly seam finishes, where necessary.
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: b15erk on May 04, 2022, 09:08:01 AM
I think most machines would have trouble with a single layer of fabric - unless it's quite sturdy.  We usually sew two pieces of fabric together to make a seam, so using fine fabric in a single layer, may need some form of stabiliser to achieve a 'flat' look.

Jessie
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: Ohsewsimple on May 04, 2022, 09:14:36 AM
I always suggest the triple zig zag stitch as it does lay flatter. 
You could always use some sort of tear away embroidery stabiliser or wash away which would help.  But could be a bit pricy just for this.  Alternative is to try different types of seams
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: StitchinTime on May 04, 2022, 10:17:06 AM
@HappyCampers  Have you tried using the overedge foot (C) instead of the standard foot (A)?

There's an online manual for your machine and this is recommended on page 25 of the manual (page 28 of the PDF).
https://www.thesewingstudio.co.uk/machine-data/downloads/janome/janome-360dc-instruction-manual.pdf
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: Bill on May 04, 2022, 11:44:40 AM
my daughter has been playing with her new Janome 360DC and one thing we have noticed is that the zigzag stitch isn't very flat across its width (if that makes sense), it tends to pull the fabric together in a ruckle

Changing to 3 stitches per zig or zag reduces this a lot - not sure if this is inevitable or can be tuned out by something on the machine, my guess is simple tension adjustment wont help?

You'd be surprised what a difference it can make. My machines default stitch tension is 3.8. Switching to a zig zag stitch automatically adjusts the tension to 3. That's the top stitch in my pic. Dropping tension to 0 leaves a finish as the 2nd stitch shows.
This fabric is thin as anything polyester lining.

  [ You are not allowed to view attachments ]  
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: Missie on May 04, 2022, 11:50:29 AM
My Janome does this (its called tunnelling) and I've never been able to sort it.  You could try a tear-away stabiliser underneath or, if you are using this to finish the edges, do a different finish. 
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: KayK on May 04, 2022, 14:39:34 PM
The wider the zig zag stitch is, the more likely it is to tunnel.  As mentioned before, use some type of stabiliser if necessary.  A looser tension helps, but it is all a matter of practice and trial runs before you make the final article!
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: Ploshkin on May 04, 2022, 22:10:22 PM
When I had my old Husqvarna & before I knew overlockers existed my go to seam finish was to zig zag and trim each side and press open.  My machine did a lovely, neat zig zag on a single layer of any fabric.  When I got my first Pfaff I found the zig zag to be pretty poor and it would invariably tunnel on a single layer of most fabrics regardless of stitch width.  It is what prompted me to buy an overlocker.  I just never used the zig zag stitch because it wasn't satisfactory.  I have found my current Pfaff to do a much better stitch.
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: HappyCampers on May 06, 2022, 08:44:22 AM
thanks folks, it all makes sense now

it looks like I am expecting too much from a zigzag stitch . . . still learning :)
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: keepitsimple on June 08, 2022, 00:13:28 AM
A single zig zag is a bit problematic on single fabric thicknesses unless they are pretty stiff.

As you found, on its own, triple zig zag works better simply becuase the gap between successive stitches is much smaller, so there is less to "pull"..

A proper overcasting foot makes a big difference as it holds the thread over the edge of the fabric while the stitch is formed.

If you are brave enough to do it, dropping the bobbin tension as well as the top tension is likely to help a lot.

If you have a machine with a separate shuttle that holds the bobbin (Berninas for example) some folk have a second shuttle that they adjust according to what they need to do and use that if needed, leaving the original one untouched.

For some reason, bobbin tension adjustment is now feared and often recommended against by those who don't understand it, but there is no magic about it. If you understand what you're doing it can solve several problems.

The older machines told you in the instructions how to adjust it, recognizing that there is no one size fits all for it.

Unfortunately, if you have a modern horizontal hook machine, it is not really practical to keep changing bobbin tension and then returning it to "normal" every time.
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: So Chic on June 08, 2022, 13:18:26 PM
I found with my Bernina that using the overlock foot with a vari-overlock stitch gives a flat edge which is much better than a three-step zigzag.  I only found this out by reading the manual more closely.
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: Bodgeitandscarper on June 08, 2022, 15:43:17 PM
Is vari-lock something specific to Berninas?  Whar sort of stitch is it?
Title: Re: getting a flat zigzag stitch in thin fabric?
Post by: So Chic on June 08, 2022, 20:08:45 PM
It’s 2 straight stitches, a zigzag then 2 stitches and a zigzag and so on.  All the manufacturers seem to call this type of stitch by different names so I think it’s a case of looking at what stitches your machine does.

I have just looked at the Janome stitch chart and 10, 13 and 40 all look similar to the Bernina varilock.