3D Print File Creation for Gridfinity

I need a 3D printer file for a custom part based on Gridfinity, specifically for use in Bambo Studio. The part should be interlocking/connectable and utilize a snap-fit connection.

Requirements:
- Design a custom part using Gridfinity principles
- Ensure the part is interlocking/connectable
- Implement a snap-fit connection mechanism

I want custom inserts, made for some various sizer bins. These inserts will allow dividers to fit. Also customs drawers need making based on an original design.

Ideal Skills and Experience:
- Proficiency in 3D modeling software
- Experience with Gridfinity designs
- Knowledge of snap-fit connection design