Magic Heart Pendant & Ring

Magnetic LED Heart Pendant & Ring

A cozy, modular heart-themed set for 3D printing, including a magnetic LED pendant and a matching heart ring.

The pendant holds a Bambu Lab magnetic LED, while the ring contains an embedded magnet. Both pieces are fun, easy to assemble, and can be worn as a necklace or attached to a backpack/keyring – perfect for kids or adults who love small, playful 3D projects.

This project is still a work in progress: an alternative pendant cover is in development to better hide the LED.

Parts Overview

Pendant (3 parts)

1. Pendant housing

2. LED holder – screw-in part for the Bambu Lab magnetic LED

3. Heart-shaped cover (printed in red, glued on after assembly)

Ring (2 parts)

1. Ring base

2. Small heart insert (printed in red, glued on)

Color Recommendation

• Red: heart-shaped pendant cover & small heart for the ring

• Other color: all remaining parts

Print Settings

• Nozzle: 0.4 mm

• Layer height: 0.15 mm

• Infill: 15%

• Supports: Not required – all parts print cleanly without support

Required Additional Parts

• Bambu Lab Magnetic LED (for the pendant)

• Magnet (8×2 mm, sourced from the large A, not the original LED kit magnet)

• Glue (for the pendant cover and small heart on the ring)

• Optional: chain or keyring

Assembly – Step by Step

Pendant

1. Insert the Bambu Lab magnetic LED into the LED holder.

2. Screw the LED holder into the pendant housing.

3. Glue the red heart-shaped cover onto the front of the pendant.

4. Let the glue fully cure before use.

Ring

1. Begin printing the ring base.

2. Pause the print shortly before completion.

   • Insert the magnet (8×2 mm, from the large A; not the original LED kit magnet).

3. Resume printing to encapsulate the magnet inside the ring.

4. Glue the small red heart into the ring.

5. The ring is designed so that you can scale it slightly down if needed; the magnet will still fit.

6. Allow the glue to dry completely before use.

Usage Ideas

• Wear the pendant as a necklace

• Attach to a backpack or bag with a keyring

• Fun as a small, interactive LED accessory for kids or adults

Notes / Work in Progress

• Current pendant cover shows the LED slightly too much – a new version is in development.

•  you can mix and match colors or slightly scale the ring if needed.