What am I missing?

[Piko]

Ok so, I have used the trick shown by one of the members of this forum (thank you again) to backstitch into the same holes and it’s turning out great. What I don't understand is why the hole left by the needle is so big.

I am Using Vinymo #8 for top and bottom which is supposed to be close to a v92. 
The outermost line was made by the #16 needle while the inner line was done with a #19 needle. I can barely tell any difference in the hole size and it still looks huge compared to the thread which looks very thin. 
The brown is the top stitch and the gray is the bottom. 
the leather is very thin Badalassi Pueblo which is very easily indented thats why there is the marks from the bottom hole on the feeding dog even though I greately reduced the top feet pressure. 
Anyhow, about the hole/thread comparison, please any suggestion? I don’t think I can fit a v138 through the eye of the #16 but I would like the hole to be smaller compared to the thread. 
Thank you. 

 

Edited April 25 by Piko

[Tigweldor]

Bobbin tension to high - see pic#2 - the top thread is pulled right through onto bottom side.

#16 needle for 92 thread is pretty good fit - maybe just try an Organ or a Schmetz needle.

Still think that the hole in the feed dog is very large, with no sharp edges. That tends to get the leather literally punched into the hole - like a funnel , so to speak.

Also, a guy rarely has to sew through a single layer of thin leather - usually you have two layers or more - so this is not an everyday reference sewing manouver.

Have you tried doubling up the material and looked at the results ?

For such thin leather, you don´t need such big equipment either - you can sew that with a much smaller machine which will then also have a smaller needle plate/feed dog hole.

This is like taking a semi-trailer truck to pick up a carton of eggs from your local grocery store, located right around the corner.

There is no sewing machine for all jobs - else we would all only have one machine - and thus a lot more space in the work shop.

Greetings

Hans

Edited April 25 by Tigweldor