3D printable magnetic levitation switch with the Hall effect sensor in a Cherry MX compatible housing.
KBD.news Published February 10, 2022
Creators! Feel free to tip me off about your keyboard related projects to bring them to 100K readers.
We've covered riskable's work on his void switches, but this one is a totally different approach.
Famichu published these MagLev MX switches, a 3D printable magnetic levitation switch with the linear output Hall effect sensor inside of a Cherry MX compatible housing.
only 2 magnets (5mm diameter x 2mm height) and a Hall sensor (IC A1304).
Dimensions/footprint compatible with Cherry MX switches
Most MagLev switches are not using Hall effect sensors. I think this is because the magnetism is too strong or the distance from the magnet is too close to detect. Therefore I implemented a new method sandwiching the Hall effect sensor between two magnets […] When the axis is pushed, the magnetisms [of the two magnets] will cancel each other out – [thus] the magnetism detected by the Hall effect sensor approaches zero. […] This method made the switch smaller, allowing it to have the same shape as existing switches – famichu.