YinTx

As far as I know, it is the original. If I was only having issues on chrome tan leather, it might be affecting things, but it happens even with rigid veg tan. I've taken apart the bobbin assembly, cleaned it, straightened the tab that was catching the thread, adjusted the bobbin tension as low as I could, completely cleaned the head, tried to adjust the foot timing and lift, reassembled, tried threading 6 different ways to sundown, different needle sizes, different thread sizes, different leather thicknesses, moved the check spring down, still nothing different, in fact it is now worse and binds when the needle tries to pierce the leather. I've wasted 4 days, tons of leather and thread on this machine, and once again I'm tempted to use it as a boat anchor. Please if anyone has any more ideas, let me know. Surely someone has dealt with this kind of problem before with this type of Techsew or Cowboy sewing machine.

Tim, Mine seems to be missing that black bar that guides the needle thread over the bobbin case, what is that???!? Without it, the thread catches the bobbin thread guide near the tension screw.

Looked around and didn't see the parts. Went through my records, seems as tho I returned them from where I got them. I had purchased them in 2018 from Pilgrim Shoe & Sewing Co. which is no longer in business as far as I know. Mine is the green one, the one they sold is the black one. Bolt did not fit and the clamp did not work. If your machinist work is successful, maybe I'll see if I can buy one off of him?

I didn't include a photo of it, but I did try stitching heavy 7+4 (11 oz total) veg tan as I mentioned. Still the same issue. I can try 15 oz, but guessing the result will be the same. It is doing the same thing on 5 layers of heavy canvas, which is too much for my 227 variant machine.

Watched the videos in the link, thank you. Tried to do the trick with the first guide on the first plates, seemed to help with the ridiculously large needle. Also did the additional wrap on the second tension plates. As soon as I stepped down to the 26 needle, back to the same issue. I had the issue from 22 needle all the way up to 27 needle, only the 28 seemed to help, and it left holes so big you could see light through it. The bobbin system seems ok, but I'm no expert. The only issue I saw was when I loosened the bobbin tension too much, the clip that holds the thread against the cylinder around the bobbin begins to stick out far enough that it catches the main (top) thread as it tries to wrap around and jambs the system. Photo included. Leather thickness is anything 7+4 oz veg tan, to single layer medium soft temper chrome tan SB Foot leather, which you can see in the photo attached, still with the bottom thread never pulled up. It just doesn't seem physically possible to have a top tension so high that it will cut my hand if I try to pull it through and a lower bobbin tension so low that I can pull it with one finger, but the bottom thread never pulls up.

I'm just baffled by the fact that the bobbin tension is so low, the top tension is so high, the thread sizes so different, and the needle so big, why the thread isn't just blowing out the top of the stitch instead of staying on the bottom. I'm trying to do a turned bag, so I can't have this combo at all, those big holes will just show with the thread when I turn the bag. Frustrating, and I don't have time to hand stitch the entire thing.

I purchased a set for my Landis splitter a few years ago, and they are the wrong shape, so apparently not for my machine. Right now I have some split washers holding it down, which I'd rather not. Not sure where they are at, but I can look for them and get some dimensions if you still haven't found something, maybe they are the correct ones for your machine.

Let me know if you see anything out of order here.

I'm pretty sure it is, but it wouldn't be the first time I missed a path! I'll snap some images tomorrow morning and try to post them.

Wondering what I can do differently here. No matter what I do, I seem to have thread staying on the bottom of the stitch, not getting pulled up into the holes. Canvas or leather. Was using a 24 needle, 277/208 thread combo, no luck. So moved to a 25 needle, same issue. Then tried 277/135 thread, still the same issue. So I moved up to a 26 needle, no luck. 27 needle, the same. 28 needle, still blowing out the bottom, with huge needle holes and small thread, looks comical. The top tension is so high, I can not pull it through the machine by hand. It even feels pretty tight when I've lifted the foot and released the tension plates. Bottom tension seems pretty light to me, I can easily pull it by hand. Tried on leather and 4 layers of medium weight canvas. Last needle was a 280/28 794R 7x3 Organ needle, with the 277 on top and 135 on bottom. What could be going on here?

Very cool. I'll have to give that a try!

I've always wondered about this. If a customer buys a product with a CITES leather from me, what certification are they supposed to have with it? I can't send the tag to three different people if I make three different items from it. I've not sold anything with CITES leathers because I don't want any customer to get it confiscated if they travel, etc. Would really like to tho.

Nicely done!

Very well explained, thanks. I think the biggest issue he has is with the belt "sagging" over time. Right now I have prepped a 9 oz top layer and a 4-5oz liner. I've done 7 oz and 4 oz for him before and it sagged. I'm beginning to think I may have to do the steel strap lining that @Dwight does.

I am trying to make a free belt for a neighbor that is hard on his belts, thought I would try to reinforce it somehow. I have some Texon or Bontex I think. What weight do you use? Do you bevel/skive the edges of it, or does it not make a visible line? Does it go the full width and length of the belt, or only up to the holes? Does it have to be in the stitching, or not? I've already done some stamping, dye work and oiling, just trying to figure out all the rest of it! Thanks in advance. YinTx