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Originally Posted by oldsewnsew
(Post 6458193)
what about adjusting needle bar height setting?
CD in Oklahoma |
Originally Posted by Glenn
(Post 6456425)
If the shuttle is worn and has been used a lot the front point and the edges become very sharp and can cut and shred the thread. I have dulled the point along both edges of the shuttle that rides next to the shuttle race. The best thing to do is find another shuttle and boye # 5 should fit it. At least it does on my New Home And yes the shuttle has to be loose so the thread will pass under and over
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I commonly find shuttle / bobbin trouble with thread breakage on a Vibrating shuttle machines. I'll wind a bobbin, place in shuttle and strip off the thread by hand. Oftentimes I find the thread catches in the shuttle which would break the thread if in the machine. This could be due to uneven bobbin winding, shuttle problem, or the lint you pulled out. Upper tension problem are much easier to spot since not too much can go wrong.
Once the shuttle gets a notch or knife edge at the edge that wears on the race It's best to replace if possible. Jon |
Jon is right and yes this is normal wear of the shuttle.
Skip |
Jon, Glenn,
So can you tell visually if a shuttle is worn past the point of no return, or do you base it on thread breakage and lacerations when you run your finger over the edge? I have about 5 or 6 shuttle machines and all of them have the original shuttles as far as I can tell. So far all are sewing properly. Knock on wood. Joe |
what shuttles interchange with NH A183? Am I looking for Boye #5? Are there other mfr part #'s? I haven't located anything yet, but I guess I can keep checking eBay...
thank you again |
2 Attachment(s)
Originally Posted by J Miller
(Post 6459519)
Jon, Glenn,
So can you tell visually if a shuttle is worn past the point of no return, or do you base it on thread breakage and lacerations when you run your finger over the edge? I have about 5 or 6 shuttle machines and all of them have the original shuttles as far as I can tell. So far all are sewing properly. Knock on wood. Joe Jon |
I missed informed you it is a Boye #3 not five. Sorry I read it wrong.Try Cindy Peters at Stiches in time. [email protected]. Ask her she may have one for sale. She also has an Ebay store.
Skip |
Thanks. I tried taking a honing stone to the aft end of the shuttle, to dull the sharp edge. If I run upper tension too loose, it doesn't seem to break the thread, or at least not so readily. Of course, it leaves big loops on top, tightening the upper tension just to get rid of the looping on top will eventually see the top thread break. Before it breaks, I increased the bobbin tension a bit to try to get rid of bobbin thread appearing on top.
I will pursue a new shuttle. Is there any other brand than Boye I should search for which is liable to be out there? |
oldsewandsew,
Thread looping on the top is controlled by the bobbin tension. Thread looping on the bottom is top tension problems. I think it's ArchaicArcane that has a method of setting the top and bottom tensions on her blog. Miriam has several threads about tension problems here too. What I do is fill a bobbin, put it in the shuttle and then thread it. Then I hold it by the thread letting the shuttle dangle on the thread. Give a little bounce on the thread. If the shuttle drops just a bit it's good to go. If not I loosen it's tension an 1/8 th turn and try again. If it drops a lot I tighten it an 1/8 th turn and repeat the drop test. After I get the shuttles where I like them I work on the top tension. Joe |
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