The differences between Plane Lock and normal lock

In 3D Modeling / CAD Software (e.g., Blender, Fusion 360)

Plane Lock

Restricts movement or manipulation to a specific plane, like XY, YZ, or XZ.

Useful for precision modeling.

Prevents the object from moving off the defined plane.

Often used during transformations like move, scale, or rotate to constrain the action.

Normal Lock

Often refers to locking along the normal direction (a vector perpendicular to a surface).

Useful for operations like extruding or moving vertices/faces in the direction the face is pointing.

Constrains the transformation along the face normal rather than a global or planar axis.

Summary:

Plane Lock = movement only allowed within a plane.

Normal Lock = movement only allowed along a normal (perpendicular to a surface).

In Aviation / Aircraft Systems

If "Plane Lock" is meant literally (i.e., locking a plane), it could refer to:

Aircraft lock mechanisms: Physical locks that hold control surfaces, landing gear, or other components in place.

Hangar safety locks: Prevent the aircraft from rolling or moving during maintenance.

Meanwhile, a normal lock in aviation could refer to:

Standard mechanical or control locks (e.g., throttle locks, rudder locks).

However, the term “Plane Lock” is uncommon in aviation compared to more specific terms like flight control locks or gust locks.

In General Terms

Plane Lock = constraint to a two-dimensional flat surface.

Normal Lock = constraint along a direction perpendicular to a surface.

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