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Soldering Spliced Wire Joints


Twi'lek Pam

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Here's a quick overview for how to splice two lengths of stranded wire:

 

 

Begin by using a wire stripper to remove about 1/2" of insulation off the ends of the wires.

 

Splice1.jpg

 

 

 

Twist the strands together.

 

Splice2.jpg

 

 

 

Create a strong mechanical bond by twisting the two wires together. Place the wires in a Helping Hands station so that they will be held securely while you are soldering.

 

Splice3.jpg

 

 

 

Tin the tip of the soldering iron, and then touch it to the bottom of the wires. Give the wire a few seconds to heat up.

 

Splice4.jpg

 

 

Begin lightly tapping the solder against the top of the wire. As soon as the wire is heated enough, the solder will suddenly begin to melt and spread across the wires. Capillary action will draw the solder into the wire strands, pulling it toward the heat of the iron. Move the iron and solder across the joint only as much as you need to, ensuring that every strand of the wire is encased with a thin layer of solder before you remove the iron and solder. Do not touch or move the joint until the solder has had time to cool!

 

Splice5.jpg

 

 

 

 

Finish up by covering the exposed wire of the joint with a piece of heat shrink tubing!

 

 

Practice, practice, practice! Always make sure you get the hang of soldering with some scrap pieces of wire before you try to solder a joint in your electronics projects!

 

 

 

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Guest Anonymous

This requires rosin core solder as the rosin is needed to keep the copper from oxidizing so the solder will stick. For big wires or metal pieces I apply rosin separately. If you have temperature sensitive components you can clamp needle nose pliers between your joint and the component to draw off the heat. Soldering is tricky work and definitely requires practice. Too much or too little heat and the solder won't stick. Never heat the solder, just heat the wire and the solder will be pulled into the rosin covered parts when the temperature is right.

 

P.S. Twi'leks are awesome. :)

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Thanks, Dave. (I really missed writing tutorials, so I decided to upload a batch of pictures and do some typing. And then my students wondered the next day why their math tests still hadn't been graded yet....)

 

 

You'd better be careful, Brad. If you write too many helpful posts like that, this Twi'lek is going to recruit you to help add more tutorials to our forum!

 

 

Pam :-)

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