Dupont Key for 5x2 connector
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Dupont key
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Model information
- Source
- Printables
- Category
- Accessories
- License
- Creative Commons — Attribution — Share Alike
This little gadget is small, simple but powerful. I made this one because I needed customized display cables for my projects, which I usually make myself using Dupont connectors.
Those connectors come with the benefit that they're pretty easy to handle but also carry the risk of being inserted in reverse. Most of the displays and controller boards on the other hand come with IDC headers, which prevent you from inserting cables with the wrong orientation.
Hence, I've modeled this key, which you simply print and then pull over the connector to make it a keyed connector.
Please notice: This part has a pretty tight fit to ensure that it doesn't come off easily. If it doesn't slide in with ease into the IDC header on the controller/display PCB, simply sand or file it down a bit.
In case you have two connectors (usually on the displays side), write the slot number onto the "nose" (i.e. 1 or 2 for EXP1, EXP2) and you're golden. You now never again have to worry about inserting them in the wrong orientation or slot!
Print this part with a 0.4 (better 0.3) mm nozzle, 0.2 mm layer height in the upright orientation you see in the attached picture.
A STEP file for modders is included.