What should I do if I forget the F3 parameter password and user management password in Ezcad?

3D fiber laser marking machine application on plastic pipe for scales, numbers, 3d fiber laser engraving application for more materials.

Fiber laser engraving machine application on stainless steel for logo, letters, fiber laser marking application for more materials.

You only need to shake up and down until the two red light indicator points coincide to quickly find the focal length.