Addpex EVO – with Embedded Nuts & Bottom Bumper

Addpex EVO Camera Mount – Reinforced TPU Remix (with Embedded Nuts & Bottom Bumper)

This is a reinforced remix of the Addpex EVO camera mount, redesigned for improved durability and easier assembly on 5-inch FPV builds.

Based on the excellent original model by the Addpex team:
Addpex — full credit to the original designers for the base geometry and concept.

https://www.thingiverse.com/thing:7079770

What’s New in This Remix

Integrated Bottom Bumper
A protective TPU bumper was added to the lower section to better absorb impacts during crashes and protect the camera and front frame.

Embedded M3 Nut System (Pause-Insert Method)
Replaces heat-set threaded inserts, which often spin freely or fail to seat properly in flexible materials.

• The print pauses automatically at the correct layer (Layer 61 with 0.20mm layer height)
• Insert standard M3 hex nuts manually
• Resume printing to fully lock the nuts inside the part

This creates a far more reliable and serviceable mounting solution for TPU prints.

Why This Version Exists

Heat-set inserts in TPU can be unreliable due to the material’s elasticity. This design uses mechanically captured nuts instead, eliminating stripped mounts and spinning inserts while keeping the part field-repairable.

Print Settings Used

• Material: TPU 95A
• Walls: 6 perimeters
• Infill: 95%
• Designed for maximum rigidity while retaining impact absorption

Hardware Requirements

• M3 hex nuts
• Nut dimensions used in the design:
  • Width: 5.40 mm
  • Height: 2.4 mm

Recommended for Bottom Bumper (Optional)

For improved durability and impact resistance, it is recommended to install:

• M3×12 mm screws
• Wide washers

Using wide washers helps distribute impact forces across the TPU bumper and prevents the screws from pulling through during hard crashes

Compatibility

Designed for a 5-inch FPV drone frame using the Addpex EVO camera mounting geometry.

Credits

Original design by the Addpex team — this model is a functional remix with structural improvements for TPU printing and crash durability.

If you print it, I’d love to see your build and hear feedback from real-world flying.