Systems and methods for rotor assemblies and manufacturing thereof

A method of manufacturing a rotor assembly of an electric engine, the method comprising:

• loading a first plurality of magnets in a magnet insertion tool;
• loading a second plurality of magnets in the magnet insertion tool, wherein the first plurality of magnets and the second plurality of magnets are shaped to form a magnet ring of the rotor assembly;
• loading a sleeve in the magnet insertion tool;
• performing an insertion movement of the first plurality of magnets with respect to the second plurality of magnets using the magnet insertion tool, wherein the insertion movement comprises:
• moving the first plurality of magnets in a radial direction of the sleeve;
• moving the second plurality of magnets in an axial direction of the sleeve;
• and
• expanding a radius of the sleeve in the radial direction using the magnet insertion tool during the insertion movement.