Magnetic Connector for Electronic Projects

Features

• A magnetic connector for low-powered, removable electrical connections
   
• Fits two neodymium magnets (See below for sizes supported)
   
• Compact and easy to build into your models - roughly 10mm tall and 25mm wide when connected
   
• 2 different “female” connectors depending on if your wires go alongside the connector, or out the back and through what it's attached to
   
• Supports a wide variety of magnets - feel free to leave a comment if you want a version designed for a different size!

Parts Needed

• 2 neodymium magnets per connector (4 overall):

  • 5 x 2mm
  • 5 x 3mm
  • 6 x 2mm
  • 6 x 3mm
  • 8 x 2mm
  • 8 x 3mm
  • 10 x 2mm
  • 10 x 3mm

   

• Wire, soldering iron
   

Printing Guidelines

• Layer height: 0.2mm
  Supports: No
  Brim: No
  Walls: 3+
  Infill: 10%+

Assembly

1. Solder wire to your magnets - I used this guide (SuperDork42 recomments this guide that helps keep your magnets' strength!) Soldering your magnet will reduce its strength slightly, but provided you work quick as in the video, it'll remain fairly strong.
   
   Note: If you solder the wires so that the magnets' poles connect like this:
   
   N-S on male connector
   S-N on female connector
   
   the magnets will repel if you try to connect them the wrong way round!
    
2. Insert the magnets into the connector, bending the wire to follow the guides. It should be a press-fit, but if not (due to filament etc.), run some superglue round the edge, where the magnet presses against the connector. If you're using large or strong magnets, superglue is highly recommended.

If you need to carry data as well, check out the 3-pin version!