Maxing out Consew 225

[Constabulary]

1 hour ago, 327fed said:

Thanks. It is threaded wrong for sure.

Video is a bit poor and old but you don´t know the thread path but you know threading in the video is wrong? How do you know?

[MarlinDave]

No sir. MY machine is for sure threaded wrong based on video. No disrespect to your video or info. Have been using it threaded wrong for a year or so. That’s the beauty of this group - facts.

[Constabulary]

sorry if I got you wrong

[MarlinDave]

No offense taken. My employees often say I don’t communicate well. Information was very useful. My machine is missing the same thread guide down next to the presser foot that was mentioned as missing on the guy’s Singer 111. Do I need to hunt one or is this how the machine came out.? 

[MarlinDave]

For some reason it will not sew leather with leather (16) needles. Sews leather with 17 needles. 

Edited February 28, 2021 by Northmount
changed easel to reason

[Uwe]

You really do have to step up your communication skills if you expect meaningful help here. You’re the one looking at the machine and observing HOW it’s not sewing (needle breaks, birds nest, skipped stitches, loops, a dozen other ways to “not sew”.) If you can’t bring yourself to give us more details then there’s not a whole lot we can do to help. 

12 hours ago, 327fed said:

For some reason it will not sew leather with leather (16) needles. Sews leather with 17 needles. 

 

[MarlinDave]

Will not penetrate leather at times, locking machine. Birds nest under walking foot. Birds nest on bottom of stitches. With 17 needle it does none of this. With 16 it does. It appears this is all it will do, with 138 on top, 92 on bobbin. 

[sandmanred]

So you are running 138 thread with a #16 or #17 needle? 

So far most of my experience is with jeans and heavy canvas but I would be running at least #21 for 138 thread and often a #22 or #23 if it's really hard canvas and/or many layers.  The reason you get the snaggle of top thread on the bottom is that the top tension needs to be very high for the take up arm to pull the top thread loop up through small needle eye and small hole in the material.  If you're tension is maxed out but still not enough the arm can't pull up the loop back up and it gets left on the bottom side.  I'd go with a bigger needle and you should be able to back way off on your top tension.

[MarlinDave]

135 x 17 (round) size 21. 135 x 16 ( leather) size 22. 138 on top, 92 on bottom, 135 x 16 needle is the problem. Just thought leather needles would perform better sewing leather. 

[sandmanred]

Sorry I misunderstood, 16 and 17 are needle style not size, so your needle size seems to be about right.  I don't have enough experience in leather to offer much help other than loops of top thread on the bottom means something is keeping the take up arm from pulling it up all the way.  Needle too small or top tension too low or thick/sticky/hard material are typical causes that I know of.