This is a magnetic coupling for connecting PTFE bowden (or reverse-bowden) tubes together. Use this to have quick-disconnects between the printer and filament drybox etc.
The built-in threads are M6, so you can use the common PC4-M6 Pneumatic Connectors.
Use 6x3mm round magnets (6x2.8mm should also work)
Fusion 360 and STEP files are added if you would like to make any changes.
The author marked this model as their own original creation.