YinTx

Been following everyone's advice, and so far I can't say things have gotten better. Again, I am sure operator error. The presser foot pressure is so low the threaded post is about to come out of the top of the machine. The foot has been ground down and polished even. The work literally lifts 1/2" from the plate when the needle is coming back up, so I don't think I can have less pressure. When the needle was making the correct shaped holes, the long groove was on the left side, but seemed to make a scraping noise in the bobbin area, so I rotated it slightly until the noise stopped. I will be ordering the maintenance CD from Raphael Sewing in the hopes it may have some info that will clue me in. Steve, thanks for the offer for needles, but I already have more than I will use in some time as noted in DoubleC's first post. Eventually, I suspect I will find the size/style I want, and at that point I may call and order some. I don't really want an S needle, as I am looking for a decorative slanted stitch. In fact I would have tried the "P" needle, but the place I bought them from didn't have any at the time. Since I got frustrated with the Techsew 4100, decided to move over to the 2700. I needed to work with a smaller thread on a project, so I changed out the needle and thread, started to try to sew on scrap with absolutely no luck. The hook is not catching the thread from the needle, so no bottom stitch, which means no stitch. Fiddled with tension, but no change. The best I ever got was one stitch to catch. Took the lid off and watched the timing, everything seemed fine, but the hook is not catching the thread off of the needle, just passing it by. Did this without leather, just slowly rotating the machine by hand. Is this because of the smaller thread? I am using a Black BNT 69 thread with a Groz-Beckert needle, I am assuming size 18, which from what I can tell is the top end for this thread ( here I don't have a smaller needle, yet). The numbering on these needles is just short of cryptic: 135x16 RTW, NRTW, DP x 16 LR, 389,200 AC01LR, 10 Nm 110/18. The machine doesn't want to push the needle through thin leather, it just binds and the clutch mechanism at the belt to machine pulley slips. Even with no thread in the needle. Takes a pair of soft nosed pliers to pull the needle out of the holder, even with the retaining screw fully removed. I checked to see if there was any thread filament bound up, pulled the caps off of the bobbin section, turned the machine over, vacuumed it out, wiped the oil, re-oiled it, rethreaded it following the Techsew video on Youtube, etc. Stitching at the slowest speed the servo motor will run at. No luck. Tempted to take it to the nearest recycle for the iron content. One of those days to throw the towel in. As always, very open to suggestions, as I have tried everything suggested above, and willing to try more. I have way to much $$ invested in these machines for zero stitches.

PM sent. thank you.

No, it didn't sew well with the round point needle either. From everything I can find, round points aren't necessarily intended for leather anyhow. I am hoping this is operator error here.

I think I could use some help here. Recently removed the round point needles that came in the Techsew 4100 machine I purchased, and installed Organ 794 LR Size 230/26 with white 277 thread. First round was a complete disaster, finally managed to get the results shown in the photos. Not certain it is what it should be though, and I can't say that I'm happy with it. Any suggestions on what I should be doing to get this to be a better stitch? Also looks like it is blowing out the back, not a clean exit. One row is just with the needle, the second row has the thread.