How to Solder

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Soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal (solder) into the joint, the filler metal having a lower melting point than the adjoining metal.

Why Solder?

  • Replaces wiring
  • Creates more permanent connections
  • For robust prototyping compared to breadboarding
  • More compact

Things you'll need

Soldering Iron
Clamps(holds board up)
Soldering Board
De-soldering tools
Tip Cleaner (cleaning tip after done)


1. Turn on Soldering Iron and turn to 650-700 F
2. Wet Sponge underneath Soldering Holster
3. Clamp perfboard/component down to be soldered for easier soldering


1. Grab solder to be applied and hold near board
2. Touch iron to copper pad on perfboard to heat the pad then apply solder to pad
3. Allow solder a few seconds to cool and wipe tip on sponge or tip cleaner occasionally

Things not to do

  • Do not apply heat directly to delicate components
i.e. never apply heat to your teensy/arduino pins, the heat will travel up the pin and fry the circuitry
  • Do not apply the solder directly to the iron, the solder goes directly onto the copper pad/component
  • Do not turn the iron above 700 degrees, the solder will be too runny to solder easily
  • Don't touch the iron. Hot things burn you.
  • Do not point the iron at other people. Not only is it rude, but the iron is also hot. Hot things burn people.
  • SOLDERING IRONS ARE NOT TOYS. If you try playing catch with it, bad things will probably happen.

Mistakes were made? Heres how to desolder

Solder Wick
Heat the undesired solder then touch wick to melted solder. Solder will wick into thin strands of copper through capillary action. NOTE: Do not touch the solder wick while it is heating with your bare hands. Heat conducts well through the copper wick.
Solder Sucker
heat undesired solder then press down the sucker. Put tip of sucker to liquid solder and press button