Introduction: Cosplay Spells (Firebolt, Icebolt, Lightning)

About: A small group of people who love making stuff with 3D printers :)

Quick and easy instructions of how to
put together some special effects to your cosplay.

I've prepared for you 3 different kinds of spells. You can change the colors to your liking so you have even more options.

This instructable will show you on one example how to do it.


  • 3D model from 3Demon - here
  • filament - ideally transparent. I used Fillamentum CPE Red Hood, CPE Lemonade a PLA Iceland Blue
  • wire
    • thin, so it isn't easily visible (you can take apart a networking cable if you have one laying around, that has thin cables)
    • the cables have to be isolated so leave on the rubber covering
    • how long the cables should be depends on where you're going to have the battery on your body (in your sleeve, on the back of your hand, etc.)
  • 3D printer
  • LED diode or LED strip
  • battery 7V (optionally with a battery connector strap)
  • optionally a switch (or just switch it off by disconcerting the battery)
  • hot glue gun or superglue
  • scissors, pliers
  • soldering iron and solder (or use some other wire joining techniques)

Step 1: 3D Printing

  1. Download the 3D model of the spells
  2. Start up your 3D printer
  3. Important slicer settings:
    1. infill 0%
    2. layer height 0,35 mm (makes it more transparent)
    3. just 1 perimeter
    4. extrusion width 0,5 or more (it might be a good idea to switch your nozzle for a bigger size like 0,6 mm if you have one)
    5. Export the g-code put in the filament an start printing
  4. You can print the inner and outer flame different colours for a special effect or you can just print the outer flame.
  5. Choose the right ring size that works best for you, try them out. They are supposed to fit on your index and middle finger.

Step 2: Soldering the Electronics

  1. Pull two wires through one of the holes in the bottom of the spell and the twin rings (the other hole is for a piece of filament that will hold the spell upright). The length of the cable depends on where you're going to have the battery and 4-6 cm are for the distance between the flame and your hand.
  2. Test which way you're supposed to solder the LED by connecting it to the battery. If it's not glowing try the other way.
  3. Solder on the LED.
  4. Solder on the optional switch
  5. Solder on the battery (or attach with the connector)

Step 3: Straightening Filament

To attach the spell to the double ring use a piece of 1.75 mm filament, 4 - 6 cm long, however you like it.

When you unwind it from the spool it will be bent. An easy way to straighten it out is submerge it into boiling water and then hold it straight until it cools down.

Step 4: Assembly

  • Use the hot glue gun or superglue to assemble the pieces.
  • Put the piece of filament through the other hole in the spell bottom and twin ring
  • check that the LED works properly and glue it and the filament in place
  • place the inner flame bed over the bottom with the led and put the inner flame in it.
  • Then cover everything with the big outer flame

You can see these steps in this video

Step 5: Now Everything Is Ready for You to Take Some Nice Photos

If you like this project please share it


Model: Konata Du Vallon
Photographer: Juriet

Thank you and have a nice day :)

3D Printed Contest

Participated in the
3D Printed Contest