.step File Modification - Thread Direction Change

I have a .step file for a lead screw nut with right handed threads that needs to be modified to have left handed threads. In addition to changing the thread direction, some minor structural modifications will be required.

Ideal Skills and Experience:
- Proficient in CAD software (e.g., SolidWorks, AutoCAD)
- Experience with .step file modification
- Ability to make minor structural adjustments
- Understanding of thread pitch adjustments
- Attention to detail and precision

Specific Tasks:
- Change the thread direction from right handed to left handed
- Make minor structural adjustments as needed
- Adjust the thread pitch where necessary