Thread tension - in depth review - industrial sewing - Juki machine

[@deshaschick46]

This example is sewers GOLDEN information! Absolutely brilliant brilliant brilliant! Thank you for taking the time to shoot this video and helping us to conquer this very frustrating issue! There was a comment further down this thread (excuse the pun) of someone commenting on material thickness and the difference it would make on your tension etc. I don't think that person looked at your entire video because you DID mention it at the end. Thank you again for this!

[@bloombayltd]

I guarantee you that a more complete yet easy to understand video doesn't exist. I was tempted to send my machine to the bottom of the ocean until finding this. You are a life saver!

[@Ken_Sweden]

Thanks!

[@Brenda-kl1hb]

😂 I’m in the similar boat! I swear I almost threw mine out the window!

[@limitout82]

Ken this was by far the best video I found that I understood. Very helpful thank you

[@Ken_Sweden]

Thank you for the nice comment

[@Jamie-k7e7e]

This is the best example of thread tension on the Internet! 👏🙋🏼‍♀️

[@princess-sofyiamandy9958]

Watched 12 videos and this is the only one that truly helped, thank you

[@barrynovak9458]

Thanks for taking the time to show the results of adjusting the top and bottom tension. Sewing with thicker thread seems to create this problem for me and now its a matter of having patience to adjust.

[@johnb6749]

Of course it does - the thicker the thread, the the more drag for starters from the eye of the needle, then the penetration-hole, material etc, not to mention it's heavier weight overall....

[@JohanBudiman-z4h]

Terimakasih telah berbagi teknik penyetelan benang menghasilkan jahitan yang maksimal👍

[@williamsews]

I've always used a lighter, normal weight thread in the bobbin if I use a heavier thread on top, it has always worked for me with top stitching thread, embroidery thread, etc.

[@Ken_Sweden]

Good info

[@StefanGstring]

Very helpful. Thank you.

[@badbug05]

Thank u. Very helpful. I've Got this problem when i bought and replace my bobbin case. 🙏

[@douglasthompson2740]

My factory manual also mentions decreasing the wraps at the top of the machine coming from the spool. The more wraps the more tension.

[@Ken_Sweden]

Great point!

[@wendymasterson-n6i]

You are amazing! Thank you …

[@shedbythetracks]

Finaly, somebody explained it so even I understand. Cheers

[@Kitchguy]

Thank you, very good video

[@bigtuuuc1095]

great explanations, thanks u very much !

[@tesoroforever]

Hold on now sir, I've been sewing almost 50 years, your making it harder than it is when it is basic common sense. You are trying to hide the thread twist of a very thick thread inbetween only 2 layers of a fabric weight that just is not thick enough to hide it. Drop down to a thinner thread that is appropriate for what you are sewing. If the thread used must be two different colors and certain parts of the project is only 2 layers of fabric no amount or adjustment will hide the twist, just switch the thread/needle to smaller gauge for those areas, the stitch is fine and well formed, its the fabric that is not thick enough to hide it. Its like your trying to force a big size 10 foot into a size 7 sandal, your toes will hang out the front and heel out the back of the sandal, no way around it, get the right shoe, same principle.

[@Ken_Sweden]

Good point about the choice of thread thickness, etc, but are you really saying that the thread tension setting is nonsense? There is no need to do anything about it because one can fix the issue of having the bottom thread showing on the top of the fabric by selecting a thicker fabric? I doubt the Japanese engineers constructing the Juki machines with adjustable thread tension share your views. However, I am happy you found a solution that works for you!

[@4anat]

Здравствуйте! Хорошее объяснение! Я как механик часто сталкиваюсь с наладкой! Это все справедливо при условии что оборудование настроено правильно, как с завода. А именно бывает, что машину перестраивали под разные ткани и изменили заводские настройки! Как это влияет на натяжение строчки: 1) проверить подход иглы к игольной пластине - ранний, средний или поздний (смотреть инструкцию) в момент когда зубья движителя ткани опускаются и сравняются с поверхностью игольной пластины. Надо быть уверенным, что там все правильно! Регулируется позади машины эксцентриком, но будьте аккуратны фотографируйте положение. 2) На этих машинках могут устанавливаться 2 вида челночных механизмов (челноков): для легких -средних тканей и тяжелых тканей! Отличие в более раннем сбросе петли, а следовательно плотнее затягивается строчка на толстых, плотных тканях. ( механическое отличие в детали, которая укорочена для раннего сброса петли, смотрите чертеж) 3) Также влияет на плотность стежка момент подхода крючка челнока к выемке в игле - более ранний или поздний подход. Хотя стандартно делается по нижней риске на игловодителе. Это есть в инструкции. 4) Соответствие номера иглы и толщины нитки, есть таблица подбора. (Для кожи иглы специально бывают скошены в лево или вправо или прямо). 5) примечание - лучше использовать шпульный колпачок от швейной машины с автоматической обрезки нитки - там внутри есть синяя плоская пружинка удерживающая шпульку от проскальзывания при резкой остановке во время шитья! 6) Если идет ёлочка на строчке из-за закручивания нити, то допустимо повернуть иглу до 5градусов, но проверить при этом зазор с челноком. 7) Еще есть регулировка высоты зубьев - при этом может стягивать строчку или растягивать. Если не прав , поправьте меня. Надеюсь кому то помог разобраться! Спасибо!

[@galejohnson8086]

You sound just like my family. Are you scandinavian? Hvor er de fra?

[@galejohnson8086]

The thread should have some roundness on the top. If it is straight lying very flat, the tension is too high. It is right to have “mountains “ as you say

[@sewingmachinesindetail]

Regarding thread tension, you may find this video useful. kzbin.info/www/bejne/oXqxg5qgaZd6pKs Most users use the yoyo method or drop test to set bobbin thread tension. But in my experience, you need a bit more bobbin thread tension with higher thread thickness, and I normally use 0.5 Newton for Serafil 20. I is a different issue to reduce the variation in height of the lock of the stitch. For a normal lock stitch machine, it will depend of the timing of the feed. For a walking foot machine like yours, the variance may be bigger than a normal sewing machine, but I do not know the specifics for such machines. Be aware, that just changing the thread color of serafil 20 or other kinds of thread will likely change bobbin thread tension. Different batches of same type of thread are different.

[@karyndandridge2654]

I’ve been trying to adjust my Juki ddl 8700 for days the same way and nothing works, I even changed needles and needle sizes and nothing works :(

[@Ken_Sweden]

Get some really thick artificial plastic leather, it will help you see it more clearly. Test the extremes on the settings and don’t hesitate on trying this because once you have tested the most extreme values, you then gradually narrow it down to the best setting. If this doesn’t work, you have and issue with the selected thread vs needle and need to test for a different fabric, needle + thread combination. As last resort you have a problematical machine, which is unlikely.

[@CuriousCoconut]

what kind of thread is used in the video

[@Ken_Sweden]

Will look it up, serafil tex 210 i think

[@CuriousCoconut]

@@Ken_Sweden Thank you tons!

[@johnb6749]

A great video - but for goodness-sake keep the camera steady when looking at the stitches, after a minute my eyes were boggling trying to follow the focus on the stitches....

[@Ken_Sweden]

Thanks for the tip!

[@judywangari4163]

Nice

[@VRUAN]

can you please get to the point quickly?

[@Ken_Sweden]

Which point…?