Crimping Servo Connections

If you are tired of paying out the nose for servo extensions, or you can’t find the right length, or just need to replace a damaged connector, these tips and pictures might help.

  • Get the right tools! We like the products offered by Hansen Hobbies. They sell crimpers, wire, contacts, and housings.
  • Use a wire stripper. James recommends the type that strips all three wires at once, like this one.
  • Consider using the latching polarized connectors on all servos, with custom-length extensions for each application.
  • Make sure you have good lighting conditions, and magnifiers if needed.
  • Strip only about 3mm of insulation.
  • Crimp in two stages: First the bare wire, then the insulation.
  • Buy extras! If in doubt, re-do it.

This Ten Minute Tip (TMT) is from RC Today Show Episode 098. If you wish, you can download the MP3 file for just this TMT here.

Here are some photos showing a connector pin being crimped and placed in the housing:

Tools of the trade

Tools of the trade

Stripping the insulation.

Stripping the insulation.

Inserting the wire into the contact.

Inserting the wire into the contact.

First crimp

First crimp

First crimp completed

First crimp completed

Second crimp

Second crimp

Second crimp completed

Second crimp completed

Inserted into housing

Inserted into housing