Seal the Honmoon with Rumi's sword from KPop Demon Hunters!

Powered by the Adafruit TPS61169 Constant Current Boost Converter for LEDs!

Two Pink LED nOOds illuminate the blade and handle to create a bright cosplay prop!

We designed the sword with steel machine screws to reinforce the 3D printed parts so it's strong and durable, just like the demon hunters.

Noods LEDs are often seen in 'Edison-like' LED bulbs, shaped into hearts or stars or just wound around to create a fun or warm lighting effect. They're made of dozens of LED diodes that are bonded together on an ultra flexible metal backing, then coated in colorful silicone for protection.

The printed sword houses the TPS LED Booster board with a slide switch to power on.

The diagram provides a general visual reference for wiring of the components once you get to the Assembly page. This diagram was created using the software package Fritzing.

Adafruit Library for Fritzing

Adafruit uses the Adafruit's Fritzing parts library to create circuit diagrams for projects. You can download the library or just grab individual parts. Get the library and parts from GitHub - Adafruit Fritzing Parts.

nOOd gap close

Close the filament gap by stacking the + end to the top of the - end and soldering together with a silicone wire.

The anode (+) end of a nOOd can be identified by a teeny-tiny hole or dot in the metal end tab.

3D Printed Parts

STL files for 3D printing will need to be oriented for printing using FDM machines.

Parts were printed with Gold and Blue Translucent PLA filament.

Note the two halves of the hilt are not identical.

Original design source files may be downloaded using the links below.

Slice with settings for PLA material

The parts were sliced using CURA, using the slice settings below.

• PLA filament 210c extruder
• 0.25 layer height
• 10% gyroid infill
• 60mm/s print speed
• 60c heated bed
• Tree Support Line Width: .2
• Support Density: 3%

Filament Change Layers

The modify Filament Change Script is located under: Extensions > Pst Processing > Modify G-Code

Front Handle

Start with Gold PLA
Blue: 209 
Gold: 318
Blue: 662
Gold: 838

Back Handle

Start with Gold PLA
Blue: 186
Gold: 323
Blue: 614
Gold: 808

Join blade parts

Use M2x12mm long screws to join each half of the blade parts.

Pre-drill the screws to make it easier to align the ends.

Press fit nOOd 

Place the silicone wire in the blade channel, under the nOOd strip to hold it in place.

Align the strip so the strip faces the same direction through out the blade.

Take care when press fitting the strip where the two ends are soldered . 

Mount Slide Switch

The slide switch press fits at an angle into the cut out above the TPS board stand offs.

Mount TPS board

Use M2.5x6mm screws to mount the board to the standoffs in the handle.

Attach blade to hilt

Use M2x12mm screws to attach each completed blade half to the hilt. 

Pre-drill the screws into the blade base to make it easier to align to the screw holes on the hilt.

Hilt slit

Press fit the wires into the slit on the handle. Guide the ground wire and nOOd strip into the cavity.

Connect nOOd

Insert the + end of the nOOd into the + terminal block. 

The ground wire is inserted into the - terminal block.

Gently pull each wire to insure the terminal block has a good grip on the wire ends.

Mount lipo battery

Insert the battery into the built-in holder with the wire end first.

Pass the wire through the cutout on the holder and route the wire to the side.

Connect battery

Connect the lipo battery into the JST wire. Route the JST socket to the side of the holder to allow the to halves to close.

Join handle and blade halves

Align the two halves. Carefully push the JST wires into the handle to avoid them getting pinched while joining both handles.

The blades are attached with M2x5mm screws.

The handle is joined with M2x12mm screws.

The handle pommels are attached with three M2x8mm screws.