My sample of my own twin-needle sewing comes from a top that was on my body just pre photo. You can see a twin-needle hem here at the bottom of a very comfy bamboo knit T shirt I made when I had only access to my ordinary machine and not my cover hem.
A couple of facts first about twin needles if you haven't used them much before before we get to the pictures:
- Any machine with a top or front loading bobbin can accommodate a twin needle. A side loading Singer Featherweight cannot for instance.
- Twin needles come in a wide variety of set apartedness and also have ballpoint/stretch versions. I have found it makes sense to have several on hand if you sew with different fabrics:
- closer twins work better with thinner and really stretchy fabrics, that's why I used one like that in the pink top below. I find that a wider twin, coupled with the activity of the zig zag can cause definite tunnelling (fabric forming a ridge between the stitches) in thinner fabrics.
- A wider twin works much better with heavier fabrics - they hold the stitches in place farther apart and the wider set parallel lines look more like RTW
- Again wooly nylon thread in the bobbin will give the stitches more bounce and also reduce tunnelling.
- If you are on a desert island or somewhere where only straight stitch machines are available, a narrowly set twin needle can be used to stitch a very effective, strong, stretch seam. Handy survivalist information to have.
So back to pictures of twin-needling, my soft pink top.
The fabric shows some wear at this stage, as favourite garments do, but the hem has held up well and shows how twin-needle hems do that. Also you will notice there is not much of the dreaded wave despite the fact that this is an extremely stretchy fabric: