Raw white FDM 3D printed Kaiju No. 8 monster mask sitting on desk with jaw slightly open showing exoskeleton forehead ridge large eye socket and rows of sharp teeth
Side profile of raw white FDM 3D printed Kaiju No. 8 mask with jaw wide open clearly showing internal spring hinge mechanism that enables the opening jaw action
GIF animation frame of grey clay 3D render of Kaiju No. 8 mask demonstrating jaw opening and closing mechanism motion sequence from closed to fully open mouth state
Photo of person wearing raw white FDM 3D printed Kaiju No. 8 mask with jaw closed showing mask scale on head covering full face from forehead to chin
Color-coded assembly guide render of Kaiju No. 8 mask showing components divided by color in pink purple and green sections to illustrate how mask splits for multi-part FDM printing
Slicer screenshot showing individual Kaiju No. 8 mask STL parts arranged on circular virtual FDM print bed with support structures generated ready for printing
Interior rear view of raw white FDM 3D printed Kaiju No. 8 mask with jaw open showing hollow interior mounting points for strap and hinge assembly connection
Painted colored render front view of Kaiju No. 8 cosplay mask with jaw closed showing white exoskeleton texture dark grey recessed areas and vivid glowing blue single round eye on forehead
Clay render three-quarter front view of Kaiju No. 8 mask in grey with jaw slightly open showing sharp white teeth rows eye socket forehead ridges and angular insectoid chin
Painted colored render side profile of Kaiju No. 8 mask with jaw wide open showcasing full mouth interior with white teeth and dark inner throat contrast in white dark grey
Clay render top-down view of Kaiju No. 8 mask showing prominent single round eye socket in center of forehead and symmetrical insectoid exoskeleton ridges with jaw closed in grey material
Low-angle photo of raw white FDM 3D printed Kaiju No. 8 mask with jaw open emphasizing dramatic rows of sharp teeth and interior mouth depth from below
Painted colored render straight front view of Kaiju No. 8 mask with jaw closed showing vibrant glowing blue eye white exoskeleton surface and dark detailed jaw seam line
Clay render side profile of Kaiju No. 8 mask in grey with jaw closed showing sleek angular insectoid lines depth of snout and overall mask silhouette from the side
Interior view of raw white FDM 3D printed Kaiju No. 8 mask with jaw open and blue LED lights glowing through eye socket and mouth openings from inside against dark background
Clay render assembly guide of Kaiju No. 8 mask showing all disassembled components in grey including upper faceplate lower jaw half and hinge connector parts for assembly reference
Photo of person holding raw white FDM 3D printed Kaiju No. 8 mask up to face with jaw closed showing scale of mask covering full face forehead to chin
Painted colored render side view of Kaiju No. 8 mask with jaw closed highlighting white and dark grey exoskeleton color contrast and smooth organic surface of monster face
Clay render symmetrical front view of Kaiju No. 8 mask in grey with jaw closed showing complete mask design large round eye socket forehead exoskeleton ridges and all surface details
Wireframe mesh side view of Kaiju No. 8 mask showing high-density triangulated polygon topology of insectoid exoskeleton surface features and mask geometry
Wireframe mesh front view of Kaiju No. 8 mask showing dense polygon topology of eye socket forehead ridges and jaw hinge geometry in wireframe mesh render

Kaiju No. 8 Mask 3D Print · STL File

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3D Model Details

This is a digital 3D printable model of a Kaiju No. 8 mask with an opening jaw.

📦 Included Files

  • STL (cut for 200mm printer beds)

  • STL (cut for larger printers)

  • Assembled OBJ file (for easy scaling)

All cut parts are placed on the print bed just as we would print them, saving you time.

📏 3D Model Dimensions

  • Width: 213 mm

  • Length: 197 mm

  • Height: 387 mm

Feel free to scale the model to fit your needs. Learn more about sizing and scaling for cosplay here.

🖨️ Printer Settings

  • Layer height: 0.15 mm

  • Infill: 10% gyroid pattern

  • Supports: 30° organic

  • For taller parts, use a brim for better bed adhesion

Settings may vary depending on your printer, so treat these as a starting point.

🛠️ Assembly

Glue the parts together - hex pegs are included for easy alignment. You can fuse the seams using a soldering tool.
To assemble the opening mechanism, connect the joint and secure the jaws together with a rubber cord. ( I used a spring, which is stronger, but less comfortable.)
Finally, attach a thick, flat rubber cord to the sides of the mask using superglue to serve as the strap for wearing the mask.

This is a digital download product. No 3D printer? No problem! Search for your local 3D printing services.

This fan-made model was brought to life by 3Demon, a team of modeling and 3D printing enthusiasts based in Prague, Czech Republic. We’ve been creating 3D printable models for over a decade, from cosplay accessories to all sorts of interesting designs.

Check out more of our creations or join our community here. 
Tags
animecosplayhalloweenhelmetkaijukaiju no.8mangamaskmonster