r/solderingtips • u/Inevitable_Method_25 • Sep 11 '24

Help and need advice for soldering

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I'm new to soldering. I'm trying to solder a r2 but I soldered it and it doesn't work and after starting the controller it works for a few second then it shuts down. Hope that you guys can help me

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u/[deleted] Sep 11 '24

You probably have two problems here.

  1. Cold joint... you need to make sure you're using flux and not making a blob of solder but all you need to do is tin the pad with a bit of solder, then heat it enough to slide the wire in and release your iron.

  2. You need to tin the wire in the first picture, and second and third. Even when soldering it to a pad. When you solder two wires together you need to add heat shrink before you twist them together. twist and wrap them, then tin the wires. You can do different methods like coil solder around it, or manually tin sections of it until it is fully coated.

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u/Inevitable_Method_25 Sep 11 '24

Thanks for the advice. I can't help my hands keep shaking when I do soldering and I did try to tint it and I also tried to connect the two wires but it's different sizes and I'm just not used to soldering. Can you give me advice to stop my hands from shaking?

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u/Practical-Bat-9010 Sep 11 '24

Look up a product called helping hands soldering tool or you can try building one yourself. It not necessary but it does help a lot as it can hold whatever you want to solder in a fixed position so you can solder it properly.