Fantastic twin needle
If you have no cover-machine, but want to give your knit garments a more professional seam finish – try a trick with a twin needle. Any regular home sewing machine with a zig-zag throat plate is capable of sewing beautiful “cover stitches” with a twin needle. This technique provides you with a seam that has elasticity and looks professional. A real must while sewing knits, swimwear fabrics or other stretchy materials.
You install a twin needle (ballpoint/jersey/stretch)in your machine just like a regular needle with the flat part of the shank towards the back.
Install the additional spool on a spool pin inserted in a special hole.
If no such additional pin / pinhole fund in your machine…. be creative and put the second spool for instance in a mug placed next to the machine.
Thread your machine as you normally would, ONE thread at a time.
If your machine has more than one thread tension disk, guide the treads through separate slots. If not, use the same slot. No worries here, it is not really a big problem. The most important thing is that the threads don’t get twisted around one another along the way. This may be a problem. If the machine is not working fine with a twin needle, check if the threads are not twisted. Another reason could be that the needle is inserted too high or too low. Check that as well.
Then thread the needles, insert the bobbin and you are ready!
This technique provides you with a two parallel stitching lines on the right side and a zig-zag stitch underneath. It has elasticity and looks very neat. As you can see, even the most basic, non-electronic sewing machine can perform this task at ease! So there is actually no “high investment” barrier that could prevent you from developing your sewing passion. That is really good news, isn’t?
You can use this stitch for sewing seams along raw edges and trimming the excess of seam allowances later. It can substitute an overlock in this way.
But you will most probably use it for top-stitching the hems.