details about robotics projects, electronics circuits, electrical projects
Soldering is a method of joining two metals together using a third metal, called solder. Soldering has many applications including assembling electronic components to circuit boards, jewelry making, making some copper pipe plumbing connections, and building or repairing radio controlled vehicles.
For radio controlled vehicle hobbyists soldering is mostly used in making repairs and modifications to electric RCs. Occasionally it might be needed with some nitro RC components. Knowing basic soldering techniques can save money. Instead of replacing a high dollar part, solder a loose wire yourself.
What Needs Soldering on an RC
The RC parts that most commonly might need some soldering are ESCs (electronic speed controllers), electric motor power leads, receivers, servos, and anyplace where wires are spliced together to make a solid connection. Soldering may be necessary when building RCs from kits.
Soldering is not usually a frequently needed repair with most RCs but it is a nice skill to have. Some of these components are relatively inexpensive and it can be much easier to simply replace the part rather than try to repair them. Or, you might find it simpler to purchase quick connect leads to connect some wires instead of soldering them.
Basic Soldering Process
In RC work, hand soldering requires a soldering iron and solder. Before doing any soldering, make sure the work area is safe and well-ventilated. Clear the area of any flammable materials, such as nitro fuel bottles and oil-covered rags. While the soldering iron is heating up, assemble the parts you're working with and get them in position for soldering. Be sure the wires or whatever parts you're joining are clean and grease-free. Even grease from your fingers can cause problems with the solder joint.
Using the hot soldering iron heat the two metal parts to be joined, at the same time. Apply a few millimeters of solder to the heated metal to form the solder joint. The heated metal parts will melt the solder metal to form the joint.
After the joint cools it should have a nice, shiny appearance. If it looks a little clouded it means that the solder didn't flow right and that the solder itself just formed a glob around the parts and that they are not really joined together. Reheat the solder enough to get it to flow and so that it bonds properly to the parts that are meant to be joined together.
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