How to make the battery interrupter - University of Pretoria
How to make the battery interrupter
|Preparation | |
|Cut a 1m piece of ripcord |[pic] |
|Split the ripcord at both ends about ±5 cm |[pic] |
|Remove the plastic coating on both sides of the ripcord to expose the copper wire | |
|At one end remove ± a 1cm piece of plastic (like the photo) and on the other end remove on the| |
|one cord a 1 cm piece of plastic and on the other cord about 1,5 cm. This unequal end is used | |
|for the jack plug which is also unequal in length. | |
|Battery interrupter | |
|Cut ±3 cm each double sided tape and copper foil |[pic] |
|Fold the double sided tape double on itself |[pic] |
|Place one piece of ripcord on one side of the double sided tape | |
|Stick the copper foil over the copper wire – make sure to leave a small piece of the double |[pic] |
|sided tape open at the bottom | |
|Turn it over and remove the paper. Stick the other piece of ripcord on the other side of the |[pic] |
|double sided tape | |
|Stick the foil over the copper wire – make sure to leave a small piece of the double sided |[pic] |
|tape open at the bottom | |
|Cut this piece smaller – smaller than an A4 battery diameter |[pic] |
|Jack plug (Female) | |
|Use the other side of the ripcord and twist the copper wire to keep the separate wires |[pic] |
|together. Do each one separately | |
|The “female” jack plug has 3 places where the wire can be attached. You will use 2. One should|[pic] |
|be where the “wings” are and the other can be anyone from the 2 left | |
|Stick one strand of the ripcord through one hole, fold it double and twist it around to fasten|[pic] |
|it tightly. Use the nose pliers. | |
|Do the same with the 2nd hole |[pic] |
|Use the nose pliers to flatten the “wings” and secure the wire |[pic] |
|Solder these wires to the jack plug for durability | |
|Cover the wires with the casing |[pic] |
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