ThePipingMart Blog Metals How to Make Solder Iron – A Complete Guide

How to Make Solder Iron – A Complete Guide

How to Make Solder Iron

Soldering irons are a must-have tool for anyone who needs to solder electronic components together. Unfortunately, they can be expensive, so if you’re looking for an alternative, why not make your own? This blog post will show you how to make solder iron at home with just a few simple materials.

Gather Your Materials

To make a soldering iron, you’ll need the following items:

  • A 12V DC power supply (e.g., from an old laptop charger or wall adapter)
  • A soldering tip (copper or brass)
  • Copper wire (about 18 AWG)
  • Electrical tape

Use heat shrink tubing to help keep the wires from coming loose and shorting out.

Assemble the Parts

Once you have all the necessary materials, it’s time to assemble them into a working solder iron. First, cut off about 8 inches of copper wire and strip off about 1/2 inch of insulation at both ends. Then attach one end of the wire to the positive (+) terminal on your power supply and the other to your soldering tip. Secure these connections with electrical tape or heat shrink tubing as needed.

Next, attach the power supply’s negative (-) terminal to something metal like a table leg or filing cabinet handle—this will provide a ground connection for when you start soldering. Finally, plug in your power supply and turn it on—if everything is connected correctly, your soldering tip should begin heating up immediately!

Finally, adjust the temperature settings on your power supply until you get the desired heat level for your soldering tip—most tips range from 350°F–500°F, depending on what type of material you’re using. Once that’s done, you’re ready to start soldering!


Making your solder iron is easy and much more cost effective than buying one from the store. All it takes is simple tools and materials like copper wire, electrical tape, and an old 12V DC power source like a laptop charger or wall adapter! Once assembled correctly, these homemade solder irons can provide just as much heat as their store-bought counterparts – giving DIYers access to professional results without spending too much money! So give it a try today – with minimal effort required but potentially big rewards awaiting you!

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