Oscillating hook sewing machines have a hook that, instead of rotating in a full circle, oscillates back and forth. In this system, the hook picks up the upper thread from the needle and carries it down around the bottom of the bobbin cage.
What is a hook on a sewing machine?
From Wikipedia, the free encyclopedia. The rotary hook (aka rotating hook) is a bobbin driver design used in lockstitch sewing machines of the 19th and 20th century and beyond. It triumphed over competing designs because it can run at higher speeds with less vibration.
Where is the hook race on a sewing machine?
Location. The hook race is a circular groove that runs around the bobbin case. This groove or track allows the hook to travel in a circular path around the bobbin when the machine is in operation.
Where is the bobbin hook?
The hook is the pointed part of the ring that rotates around the bobbin case.
What does a tension dial do on a sewing machine?
On newer models there are three discs controlled by a dial or key pad on the front of the machine, which can regulate two threads at once. In either case, the tension regulator is elementary: When adjusted to a higher number (turned clockwise), the discs move closer together, increasing the amount of pressure.
What is Rotary oscillating hook?
Rotary hook machines make exactly the same lock-stitch stitches as an Oscillating hook. It is impossible to look at the two rows of stitches and tell the difference between the seams. … They also tend to be slightly quieter than an Oscillating hook and they are typically the chosen system for high-speed machines.
What is a CB hook?
For machines with the CB hook
The CB Hook is used in particular for sewing utility and decorative stitches with a stitch width of up to 5.5 mm.
Do Brother sewing machines need oiling?
In order to extend the life of the embroidery machine’s parts and keep the machine operating correctly, be sure to oil the machine before the first time that it is used. If too little oil was applied to the race, an error message may appear.
Do modern sewing machines need oiling?
Well, this was partly true for the machines years ago but not so for today’s modern, computerized and highbred machines. All sewing machines do require lubrication in some form or manner, but it is not the answer to all ills as it used to be.
How does the bottom bobbin work?
According to Vocabulary.com, “A bobbin is the part of a sewing machine on which the lower thread is wound. The machine makes a stitch by catching the bottom thread, from the bobbin, with the top thread, from the needle.” … The bobbin feeds the thread through the machine to help secure a stitch.
Is there a top and bottom to a bobbin?
Look at your bobbin case–that’s the part where you insert the bobbin. If your machine has a front loading bobbin, remove the case and look at it from the side, open area on top. There will be a slot in the case that angles either from top right to bottom left or top left to bottom right.
Does bobbin thread have to be the same color?
You can use whatever color you want, but you don’t need to change color to match the top thread. Your bobbin thread should not show through the top layer of stitching. … Your bobbin thread should not show through the top layer of stitching. It will only be seen on the back of the item.
What should my sewing machine tension be set at?
The dial settings run from 0 to 9, so 4.5 is generally the ‘default’ position for normal straight-stitch sewing. This should be suitable for most fabrics. If you are doing a zig-zag stitch, or another stitch that has width, then you may find that the bobbin thread is pulled through to the top.
Why is my needle hitting the bobbin?
Why it happens
If the needle hits the bobbin case, it may break the tip of the needle. This usually happens if the bobbin case is not placed correctly. After cleaning your sewing machine, you may fail to put back the bobbin case into its original alignment. … You also need to understand your sewing machine bobbin system.
Why is my bobbin jumping?
There could be several reasons why the bobbin is jumping in the bobbin case. … The thread was not wound properly on the bobbin. Wind the bobbin thread properly.