Conductive thread is one of the key elements for e-textile crafting but it seems sometimes difficult for people to get their hands on commercially available conductive thread. This Instructables might be a good starting point to get aspiring e-textile crafters started.
For the thread material only two ingredient’s are needed: fine cotton thread and very fine wires which can be salvaged from relays or other spool components in electronic devices.
The Instructables focuses on a smart, simple way of fabricating the spool machine with parts that can be easily found around the house.
Read the instruction carefully, especially point 6 which explains how to use the self made conductive thread made from those fine wires coming from electronic components. These wires are usually insulated.
This insulation has to be removed on the points where an electrical connection has to be made. One way of removing the insulation is to use a solder iron to melt off the insulation.
Due to the heat of the solder iron, only Cotton thread as carrier will work as Polyester thread would melt while removing the insulation on the fine wires.
The upside of using insulated wires is: the insulation which allows the cross-sewing of the conductive thread.
If you have no way to get commercially available conductive thread or you want to have full control over the resistance of the conductive thread, this Instructables can help you.