If you don't the moving parts will start to rub against each other. HTey may eventually seize or wear out.
to decrease the friction and to avoid wear and tear
Because it has lots of moving parts that has to be able to move easily.
Using a sewing machine is a lot quicker and often neater than the much slower hand sewing. Some modern sewing machines are able to produce fancy stitching.
theory of sewing machine
Not all sewing machines are compound machines. The definition of a compound machine is one the contains more than one machine within the same case. A machine that is not only a sewing machine but also an embroidery machine would be considered a compound sewing machine. A really good compound sewing machine is the Husqvarna Diamond sewing machine.
sewing machine:) A sewing machine uses thread to fasten fabric together. A sowing machine plants seeds.
A mechanical sewing machine.
what is the function of the head of the sewing machine
the sewing machine brooklyn
The Singer 2517 Sewing Machine is quiet.
What does the tension disc do on the sewing machine
what is the function of a pulley in a sewing machine
Although this is not a machine, people often knit jumpers out of wool for winter, to stay warm. Apart from that, I do not suspect their is another machine and that sewing machines will have to do.