Quantity   Component name
2 × M2 Steel Nut An M2 steel nut is used as an easy to get, low cost part for the holding mechanism
2 × 2mm dia, 2mm tall magnet They are inserted into the Magnet holder
1 × Magnet holder (3d printed) Magnet holder is available to download as STL file
1 × Body (3d printed) Body is available to download as STL file
1 × Coil (0.1mm enameled wire) 5.5m are used, approx 300 turns