Scalable Ball & Socket Joint – Adjustable Pivot

This model is a simple, robust ball and socket joint designed to provide a freely adjustable fixing point for a wide range of 3D printed applications. The joint consists of a spherical ball mounted on a flat base and a flexible, slotted socket that securely captures the ball while still allowing smooth articulation.

The geometry has been intentionally designed so the part can be scaled to virtually any size in your slicer while remaining fully functional, making it ideal for prototyping, custom fixtures, articulated mounts, and adjustable positioning systems.
 

The slotted socket allows the ball to be pressed in after printing, creating a snug, reliable fit without the need for screws, springs, or additional hardware.

Key Features

• Fully printable ball and socket joint
• Smooth multi-directional movement
• Secure snap-fit style socket with flexible segments
• Flat mounting bases on both parts for easy integration
• Uniformly scalable without redesign
• No additional hardware required

Typical Uses

• Adjustable mounts and brackets
• Articulated prototypes
• Movable fixing points
• Jigs, fixtures, and workshop aids
• General mechanical experimentation

Printing Notes

• No supports required when printed as shown
• Standard layer heights work well; finer layers will improve ball smoothness
• Material choice can be tuned for stiffness vs flexibility (PLA, PETG, etc.)

Assembly

Simply press the ball into the socket by hand. The flexible socket fingers will open slightly and retain the ball, allowing controlled movement once assembled.