Calibrating the bobbin case means that he needs to set it stension to the right setting. He does this by turing the little screw on the outside of the case. They do make a tool that measures the tension on the bobbin, but most just hold bobbin thread while it is inside the bobbin case in it and see how fast it drops. Gosh, I think I saw video of this. If I find it, I'll post it.
Can't find the video but the tension guage is on Amazon and other sites. Search For "Towa bobbin tension guage."
ttt
I would love to know the size bobbin you purchased. I am guessing that you did not see my comment nor dragonflyer's either -- so I brought this back to the top
So Loralye...what size pre-wound bobbins did you buy...Class 15A or Class L??? It would make a big difference in the way your bobbin case works...if you have Class L...you need to use the little adapter that sits under the bobbin case...but your repair man should have noticed if you had a Class L bobbin in and no adapter...
If the bobbin case you purchased is for the embroidery...they come pre-set from the factory...if it is for regular machine stitching..you can adjust it yourself...but the embroidery bobbin cases should already be calibrated at the Janome factory...when I had my Janome 11000SE, the embroidery bobbin cases were already calibrated correctly...at the factory! Most of the time it is not wise to do any adjustment to the embroidery bobbin case...which is why they suggest you only adjust the tension with the machine tension settings...Lor, if your bobbin case has needle holes or burrs...file them off with an Emory board...I do this when ever I get a burr on mine and it works like a dream....
Mine come pre-set as well.
I have an emery board in my embroidery box -- just for burrs
You are lucky you have a repair man that will call you. I have to keep calling mine. Most of the time he is not there and the person that answers the phone knows nothing. I can understand your frustrations. I have been waiting for over 5 months for a part to fix the button that brings the needle threader down. He put in a part that was not broken and charged me. I have at last been told the right part is there. I will take my machine in next week. Hope your problem is solved soon. Hugs Shirley
thanks Shirley we are @ their mercy. If there was a class to learn how to repair my own I would take it
If it was me & I knew what I was doing wrong then I could learn from it & not do it but if I don't know then how can I continue to sew anything. It is breaking my heart to think that I can continue to sew & this same thing will happen then why should I sew anything?
Don't give up just yet. I had a machine doing that and found it had a burr on the plate. That burr would damage the needle right away and then I had shredded thread. I have a great repairman (actually a woman) that will always check my embroidery arm, bobbin case and all the rest that I need checked.
I don't know if it is you that is causing the problem.
I am sure you have checked the thread path, made sure the thread is coming off the bobbin the right way, selected the right needle for the job, and all the rest...
Hang in there!
That should be in the manual or right on the machine. Just make sure you are doing it the right way.
Just to make sure we are talking about the same thing --
Edited: Do you also have one of the second picture?
The second one is for pre-wound bobbins. I think it is even the one for your machine
My machine (a Babylock) came with one. You should have one. I heard some use a dime if they do not have one of these BUT I don't think that would be smooth and I wouldn't risk it with my machine.
I think that the second is only necessary if your machine uses Class 15A bobbins and you are going to use Class L bobbins...it is not for all pre-wound bobbins...use to be you could not get Class 15A pre-wounds...so machine companies put this little gizmo in so that Class L pre-wound bobbins could be used...
I guess the next question I have is -- what size bobbin does Loralye use? I know some websites still do not offer the 15A
You're right...if she is not using Class 15A...and she bought Class L...she would need to use the adapter...
Thank you jofrog200
I should have said that I worry the bobbin would not spin smoothly. It would seem to me it might be like having a bit of fuzz under the bobbin. My machine is quite picky though and I haven't the money right now to fix a timing (or any other) issue.
I should have said the reason I have had to buy yet another bobbin case is because my is getting shredded? The slightest bur on this case can throw the whole thing out of wack or so I am told?
it has many burrs But I don't understand why & he thinks it's something I AM PERSONALLY DOING? When I asked him if wanted me to stitch while he was here (or me there) he was pretty snarky about it.......
this is why I asked about the pre-wound bobbins he said NO that it wasn't them but I have heard that some machines don't like certain needles or certain threads so why not certain pre-wound bobbins?
He is going to adjust the bobbin case by turning the screw to the right tension for embroidery. Has he stitched with the bobbin you are having issues with?
he did try to do reg stitches but not embroidery? Couldn't I just tighten the screw myself?
Not really. He should have done embroidery. Did he change out the bobbin case? If I use the wrong case, my embroidery will not work right at all.
He should use the designs that came with the machine to test the embroidery parts