PFAFF 1245 tensioner issue

[katit]

Back with the same problem. I don't like thread appearance. Does it look OK or I'm thinking too much? 

In this particular case it's Organ 125/20 LR. Smallest I have. Thread is #92 black from Tandy's. 

I don't like how leather get's cut on a bottom and it's too much of a cut on a top, no? Left piece -4 layers, right piece - 2 layers. On 2 layers knot sometimes on top, sometimes on bottom. No consistency.

Edited December 4, 2018 by katit

[katit]

Now, this gray is different thread. #92 from thread exchange. Seems like it lays better, but holes even bigger? Black thread almost feels "stiff" when I pull it through tensioner it's like "grinding" comparing to gray one.

Do you think it's OK and I should just leave it as is? I want to achieve this "puff" effect. Not sure how it called, like thread jams into the leather with stitches going in more radiused. Or maybe this leather I got too dry? This is automotive leather.

[chrisash]

What size needle are you using with the 92 thread

[Constabulary]

Try a round point needle. It´s no that round point only can sew fabric. Thin leather often works fine with a round point needles. Or try S Point or DI Point needles

See attachment - maybe it helps a bit finding the right needle

SCHMETZ-14215_Leaflet-Schneidspitzen_GB-pdf.pdf

[katit]

Too late I mean too late I placed order yesterday with threadsexchange. Ordered LL and LR needlses in size 120 (this one on pic is 125 LR)

I have 130R - not much difference. I'm blaming thread too, gray and black way too different.

Main thing you guys see a problem too, so it's not normal.

[shoepatcher]

Black always stiffer.   I still think the take up spring needs to be adjusted a little more.  Tension not always just top and bobbin tensions springs.  Take up spring can cause or correct some problems.

glenn

[katit]

  On 12/4/2018 at 8:17 PM, shoepatcher said:

Black always stiffer.   I still think the take up spring needs to be adjusted a little more.  Tension not always just top and bobbin tensions springs.  Take up spring can cause or correct some problems.

glenn

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Glenn,

How do I adjust take up spring? Is that know next to top tension? Should I make it tighter?

[shoepatcher]

Rather than try to explain it, I think UWE or Wiz has a video on how to adjust it.  I would try that first.  Take your finger and see if the take up spring  which is to the left of  the tension adjustment  nut and flick it up a couple of time to see if it hangs up at all.  That is sometimes and indication if the spring is not functioning correctly.

glenn

[katit]

Glenn,

Not sure if that's what you mean, but when I try to lift that spring up with a finger I feel like there is a notch. Almost like slight "click" at beginning of movement. Does it have to lift up smoothly and if so, what should I do? I don't want to just take it out because there seem to be another adjustment?

OTOH - I got smaller (120/19) needles today and tried some seams. I think they look good. Most right is LR and others LL. Most left is when I got tension dialed in correctly. They look good to me. Bottom awful of course.

What would you use one vs another (LL vs LR)? In my mind (for upholstery) I would use LL for plain seams and maybe use LR for top(visible) seams.

[shoepatcher]

I prefer to use round needles on soft leather.  That's just me.  Wiz might have better insight for you on that question.

glenn

[Wizcrafts]

Once you get down to a size 18 needle the point isn't so important and can affect the lay of the thread. The way I decide on a point change is if the needle makes an unpleasant noise, or squeaks going into the leather. That tells me that the friction is excessive. I keep three types of point in stock: round, DI (triangle) and slicing (LL or LR). Some points go through with less drag than others. Experiment!

[katit]

Thanks! Just one more question. I though Size 19 is smallest for 92 thread? Why you said 18?

[Wizcrafts]

  On 12/8/2018 at 6:23 PM, katit said:

Thanks! Just one more question. I though Size 19 is smallest for 92 thread? Why you said 18?

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I never said anything about the thread size a #18 needle fits. That would be #69 (T70) bonded nylon. I was in fact replying to Shoepatcher's comment.