Did you measure the resistance of your coil? Did you measure the resistance of the store-bought E-magnet?What was the difference? The E-magnet coil is wound on a core of soft iron (magnet iron) that has high magnetic permeability, what about the core in your coil? Your coil might work as a radio antenna but never as a magnet. E-magnet
I would start off with 1 coil, narrow in physical width that can be used to suspend an object; like a self stabilizing camera lens.. Once you got that ability, you'd want to duplicate those coils and stack-em on top of each other. Once you get 2 coils you'll want to learn how to manipulate the fields so that you can move the suspended object from 1 coil to the next. Once you are able to move the object from 1 coil to the next, you'll use a stack of coils, with the object suspended between the coils center, move the object up and down the length of your coil stack, slowly. When you have established control of the object suspended in the coils field, you'll then want to 'shoot' you object with a fast signal and blah, blah, blah.But first, you need to learn how to suspend an object in the narrow width coil.
You might want to use a cap to measure the inductance of both of them.
when you say 1 coil, do u mean one wrapped layer or 1 whole coil? In my example I am using a plastic pencil cap which is pretty narrow in width, Also when you say suspend an object, do you mean inside the pencil cap when i apply voltage to the coil to make something like a screw stick to the inside of the coil in the cap. Because that i can do now. Thanks