3D Printable Rumi Sword (K-Pop Demon Hunters)

Bring the iconic sword of Rumi, the legendary lead singer of the fictional K-pop group HUNTR/X from K-Pop Demon Hunters, to life with this full-size, 3D printable replica.

Designed with both strength and practicality in mind, this model features an internal channel for LED lighting and reinforced construction using threaded rods, making it perfect for cosplay, display, or conventions.

Features

• ⚔️ Full-size replica of Rumi's sword
• 💡 Internal channel designed to house a full strip of LEDs
• 🔩 Reinforced with 2 × M4 threaded rods along the blade for added strength
• 🛠️ Easy-access screw fixing inside the handle for straightforward assembly
• 🖨️ Optimised for home 3D printing

Print Recommendations

Recommended Material: PETG

PETG is strongly recommended as it offers: - Greater durability - Better impact resistance - Improved sanding and finishing

PLA is also compatible, although it is less resistant to knocks and heavy use.

Updates

Smaller Printer Support

Additional files have now been included:

• Blade split into 4 printable sections (Blade 1–4) for smaller print beds
• V2 Pommel
• Kids-sized blade version

Electronics Used

Power Bank

I used the following USB power bank to power the LEDs:

Link

Recommended LED Strip

These LEDs produce excellent results and are highly recommended:

Link

Bluetooth LED Controller

The Bluetooth adapter used for wireless control:

Link

Video Showcase

See the sword in action on TikTok:

Link

Notes

This model is intended for personal use only. Please respect the licence and do not redistribute or resell the files.

Happy printing, and if you have any questions, feel free to get in touch!