StoneBuiltKnives

Thank you!

Finally!

I did not but it's already leaving marks in my leather. I have however finally achieved some success with my sewing woes. I didn't realize I had lighter thread in the box of stuff I got with my machine. I dropped down to a 207 thread with the 25 needles and my breakage problems disappeared. Thank you for all the assistance. Now I can focus on learning to actually use the machine instead of troubleshooting.

I'm inclined to believe a bigger needle is needed as well. The problem gets worse the thicker the leather I sew. When I get to my three layers of 8 oz glued is when I have the worst problems.

It helped enough for me to believe it was part of the problem. Specifically with missing stitches. I'm still getting some thread fraying, though no full breakages yet. Thank you.

My machine seems to hit the same stitching holes fairly consistently from forward to reverse. At the this point I'm waiting on 26 needles to try. If that doesn't solve the problem I'll try lowering the needle bar a smidge. I don't want to make multiple changes at once.

Thank you. I'll try lowering the needle bar a millimeter or so. That video is illuminating!

Thank you. The knot seems to be centered in the material and tension seems to be about right to my untrained eye. I appreciate the feedback about the way I'm gripping the thread!

Thank you. I'll try that.

I spoke too soon. The issue now seems to only occur when back stitching. I'm using 270 thread top and bottom with a 25 needle. Stitching length is consistent from forward to reverse. Am I trying to cram too many stitches into a small area? Again thank you in advance. I'm certainly not sure if this is simply operator error.

Thank you for the replies. I believe I may have it fixed. I think I underestimated the tolerance for an out of time condition. The hook was just barely protruding at bdc. I adjusted it so it was flush with the housing and so far it is stitching in reverse correctly. I'll update this post if wrong. Thank you again!

https://youtu.be/XqRU8rubNLA

Hello. If I could humbly request some assistance. I recently acquired a Cobra class 4 sewing machine second hand. This is my first sewing machine of any kind. My machine is breaking the upper thread and missing stitches when used in reverse. I believe the timing to be correct but I could be mistaken. In sews fine forward. Thank you in advance!