Written by 1:54 am Tips by AP, Tools

How to Make Dupont Connectors

So you’re working on a project and you need to make some Dupont connectors but you have no idea what they are or how to make them? Well, I ran into the same issue not too long ago so I whipped up this how-to to help you out!

For those not in the know, a Dupont connector (or jumper) is the connector used to various things to a pinned circuit board (like an Arduino). This could be anything from servos to LEDs!

I had to make a bunch for my BD-1 project (if you don’t know what that is, go here).

Let’s do it!


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Step 1

First, strip your wires and, if they’re strands, twist them so they’re nice and tight. This will make inserting them into the connector way easier.

Step 2

Next, break off one of the connectors. Notice the pointy teeth at the end? These are what get crimped around the wire.

Close up of a dupont connector.

Step 3

Gently insert the connector into the crimper, the tooth of the crimper is curved to accommodate the shape of the connector. Rest the connector on the tooth and slowly clamp down until the connector stays put. You don’t want to crimp all the way just yet, this is to hold it in place for Step 4.

Step 4

Insert the wire into the connector, and crimp.

Step 5

Finally, insert your crimped connectors into the plug housing. This part can be a bit tricky, just listen for the “clicking” noise when you push it in, which means that it’s locked in place. You may need a pair of pliers to adjust the crimp to get these to seat properly.

And now you are the proud owner of a Dupont connector!

Happy making,