Sew Explicit

In continuation of the previous post , I will be sharing my method of making a seam guide on the popular " black-head" sewing machines. What you need: 1.        A pair of divider (from your maths set) 2.        Removable ink marker 3.        Steel/plastic ruler

So a pattern calls for 1/2" sewing allowance, how do you ensure your seams are exactly 1/2"? Eyeball? Use chalk to mark all the way down? Simple, use seam guides located on your sewing machines. The presser foot: you know this can be used as a guide right? The distance from the needle to the edge of the presser foot is a specific amount. For instance

How do you sew and make an invisible zip truly invisible?  the best way to truly make it invisible is to use a zipper foot. There is a presser foot specifically  designed for inserting invisible zips but the one that I have used is an ordinary  zipper foot. While searching for images, my search revealed that what I have is actually a piping foot or is it an elastic foot?