Just drag-n-drop [Jacek]’s magellan.uf2 firmware and you’re done. If you’d rather build your own, modern 3D mouse, check out the DIY Cad Mouse You Can Actually Build.

[Salim] started his work with research, by watching a teardown of a Connexion Space Navigator 3D mouse. This informed ... into useful viewport commands for CAD software. A RP2040 is charged ...