Threading confusion

[AlZilla]

When you turn the work, first bury the needle and raise it up a quarter inch. Raise the presser foot and turn the material. This allows the hook to catch the bobbin thread and prevent skipped stitches. Same thing with turning a corner.

To begin a stitch line, start about 3 stitches down the line and sew back to where you wanted to start. Turn around and go in the direction you wanted to in the first place.  At the end, you can just turn around and sew back 3 stitches.

If you begin at the start, sew 3 ahead, then turn around and sew back to the beginning and THEN turn around yet again, sewing in the "right" direction, you have gone over the first 3 stitches 3 times! Way too many stitches in leather.

Practice, practice, practice ...

[kgg]

6 hours ago, girlscout4 said:

It was doing really good until this began happening.

A couple of problems I found with your threading of the top thread. Without these corrected you will never get good stitching.

1. The needle is installed backwards.

2. Needle bar thread guide is missing.

kgg

 

[AlZilla]

25 minutes ago, kgg said:

The needle is installed backwards

@kgg, well spotted!

I wonder if turning the needle will better center it in the hole? 

I recently was playing with a domestic machine, having a problem shredding the top thread. Turned out the needle was off center and backwards, shredding the non groove side against the needle plate.

[kgg]

3 hours ago, AlZilla said:

I wonder if turning the needle will better center it in the hole? 

I don't think it will but that brings up the point is the needle bent or there is a lot of slop or a bend in the needle bar. Frankly I am surprised the hook is catching the top thread at all. The only thing I can figure is the top thread has so much slack the hook is somehow picking it up most times.

kgg

[kgg]

Just to add to this. @girlscout4 

1. The needle has to be installed so the Groove (long channel on the shank) on the needle is to the left and the Scarf ( indentation / cutout ) on the right hand side as you look at it when sitting in front of the machine ready to sew.

2. You need to use a 135 x 16 x # needle for sewing leather. I think you maybe using a 135 x 17 x # needle which are made for fabric and will give you blowout on the underside.

3. You never said what size of thread and needle you are using. What size???

4. A good thread to needle size chart can be found here ( https://www.tolindsewmach.com/thread-chart.html )

kgg

[Northmount]

22 hours ago, girlscout4 said:

This is on my singer 111w155

I moved your post to leather sewing machines

[AlZilla]

20 hours ago, girlscout4 said:

It was doing really good until this began happening. Messing with the tightness of the different thread tension points to get it perfect. I’ll check your other forum below to see what’s going on. Thanks so much! 

Well, KGG pointed out that your needle is in backwards. It's a wonder it stitched at all!  You're definitely inside the 5 yard line but those last couple yards can be a grind.  Spin the needle around and see how it goes. It's got to help. And It seems that the needle isn't well centered in the hole, so you'll want to address that at some point.

[dikman]

The scarf (the little notch on the needle) faces towards the hook.