Soldering w/o third hand
https://www.instructables.com/Soldering-Wires-Heres-a-Better-Way/
How It Works
Instead of the solder being last to the joint, I apply it first and I make sure it's not all melted. I cut off the surplus to ensure the joint will have the correct amount of solder. Now's a good time to add solder lengths to the other pads that require wires.
The Soldering Step Is Super-quick
Offer up the wire to the joint followed by the iron. The solder melts and feeds into the joint super-quick (watch the video, even in slow-mo it's amazing).
Multiple Wire Joints
If you have lots of wires to connect, this is a real timesaver. Each joint can have a different amount of solder depending on its size. Trimming off the length determines how much solder will be used, so it keeps you in full control here.
Not having to hold the solder gives you freedom to position each wire easily by hand.
Avoiding Melting the Insulation
Here is the last tip. Pull the sleeving back before soldering, and ease it back after the joint cools.








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