This 3D-printable compression joint is a modular component designed for seamless integration into your own models and projects. It’s engineered to accommodate wire diameters ranging from 5mm to 6.6mm, with a snug-fitting TPU gasket insert to ensure a tight seal.

The joint is printed in PETG for durability and flexibility, as PLA versions are prone to snapping under compression. TPU gaskets are used to enhance the seal and help prevent dust, debris, or light moisture ingress, making it suitable for a wide range of DIY and prototyping applications.

Key Features:

• Two Variants:
  • With Screw Insert: Features an internal mount for holding a screw, allowing secure attachment into your own enclosures or models.
  • Without Screw Insert: A streamlined version that can also be embedded or customized for general use.
• Wire Compatibility:
  • Designed for wires from 5mm to 6.6mm in diameter.
  • TPU gasket insert can be modified for smaller wire sizes.
• Material Recommendations:
  • Body: PETG for strength and resilience.
  • Gasket: TPU for a flexible, compressive seal.

Whether you're building a waterproof housing, sensor enclosure, or routing power cables through custom-built hardware, this compression joint is a reusable and adaptable solution. It’s designed with modelers and makers in mind—easy to print, assemble, and integrate.

Why

I wanted a versatile, reliable compression joint that could be freely used in any type of project—so I made one and shared it for everyone.

License:

This model is released under a Creative Commons Public Domain (CC0) license and can be used freely in personal, educational, or commercial projects without attribution.

Please Note

The small tabs can be a little delicate and should be handled with a bit of care to prevent breakage.  Highly recommended to place the TPU insert in first which helps with the overall strength prior to inserting wire/cap.

Hope you enjoy ;-)