Tri Forged Studios

3D Printing - Casting - Mold Making - Production

Majora's Mask Full Wearable Version (2017)


Majora’s Mask was a project we wanted to complete for a long time. It originally began in 2015 as a Pepakura build using files from DNP Props, but the project remained in that stage for several years. In the summer of 2017, after Tri-Forged Studios brought on shop assistants Alannah and Luis, we resumed the project in preparation for Toronto Fan Expo.

The mask was printed on 110 lb cardstock, then cut, folded, and assembled using the Pepakura method. Several coats of fiberglass resin were brushed onto the paper model to add strength for the next stages of reinforcement and surface work. Bondo body filler was applied to build thickness, since the intention was to mold the back of the mask. The surface was refined through multiple sanding passes to achieve a smooth finish.

The rounded eye forms were created using the tops of old large Pokéballs. The black line details were built using Apoxie Sculpt, pushed through an extruder with a half-circle attachment. A separate Pepakura template was printed and used as a placement guide to keep the lines consistent. The embossed sections were engraved using a Dremel rotary tool. Additional Bondo work followed.

One of the main challenges was creating a silicone mold of the mask with its 10 horns extending in different directions. The solution was to remove each horn, label them, and mold them separately. The horns were cast in urethane rubber to make them safer for convention use and less likely to cause injury.

A brush-on silicone mold was created using Smooth-On Rebound 40, built up in multiple layers for strength. Silicone registration keys were added to the outside of the mold, and after applying release agent, rigid expanding Foam-iT was used to create a hard support shell. The mask shells were cast in Smooth-Cast 65D resin using a rotational casting process. Each casting was tinted for inventory tracking before final paint.

The finished masks were hand painted. Cutouts were added for breathing and viewing, and black nylon was installed behind the openings so the interior was not visible from the front. Adjustable strapping was installed using metal rivets. Wall mounts were also included with each mask.

 

Pepakura file built using 110 lb card stock. Physical 3D details will be added later with Apoxie Sculpt.

Bondo

Luis applying the first layer of Bondo body filler. Safety first!

 

Sanding the eyes.We actually used our old Pokeball casts to get these perfectly round and smooth!

Sand First + Sand later

Horns solid. We sand the mask down to find all the problem areas then apply more Bondo.

Scaling

After some sanding, we check the scale. Looks good.

Eye Sizing

Eye placement to see what we can expect. These will be apoxied on closer to the finish. 

Finer sanding

Alannah sanding the mask down using Bondo spot filler and a finer sandpaper. 

More Bondo!

Alannah applying Bondo to the inside of the mask to add strength for the molding process. 

Interior shaping

We glued paper walls to the inside of the mask and filled the space with Bondo to create thick walls. We were planning on casting the inside originally. 

Off with the horns!

Alannah using the scroll saw to cut the horns off the mask. We got a suggestion to cut these off for an easier molding experience. 

More Bondo

Luis mixing up more Bondo to fill some areas. 

templates Drawn on 

We used templates from the Pepakura file to draw the designs on the mask. Some details are carved using a sanding file. 

Apoxie Sculpt Applied

Apoxie Sculpt is a wonderful material that air dries and hardens to a rock in 24 hours. It can also be smoothened with water. 

Primer Applied

Mask sanded and a bright blue primer was sprayed on. Bright paints allow us to see problem areas and find any imperfections. 

Eyes carved

Final details are carved into the mask with a sanding file. Almost done the master!

Final major sanding

Entire mask was sanded down to 2000 grit. It is completely smooth. 

Top side

Top of the mask primered. Right before I sprayed the gloss coat. 

molding starts!

I hot glued the mask to a piece of smooth glass to get a smoother mold surface. Now filling the seams between the glass and the mask with an oil based clay. 

Print Layer

Print layer applied. This layer is supposed to be very thin to make sure to capture all details and eliminate air bubbles on the surface. 

Silicone applied

Silicone applied layer by layer by brush


 

Fiberglass

Mask coated with Fiberglass Resin to strengthen it. This gives the mask stability to be able to be fiber glassed and Bondo'd. 

 

First layer being applied to the face of the mask. Now it's looking like a cake.

 

There is always more Bondo needing to be added. Many uneven surfaces. 

More Sanding!

Luis sanding the mask using a mouse sander. Sanding is definitely the most time consuming part of the project.

Did you say Bondo?

It's  looking more uniform but there is still lots of work to get done!

Sanding & Sanding

Getting smoother with each layer. We have been sanding this with 400 to 2000 grit sandpaper to get it very smooth.

Spot Putty

Spot putty from Bondo is used to fill small pin hole sized holes and to do final sanding layers. 

Behind the mask

Bondo added to the walls first and then the bottom is covered to allow a smoother finish. 

Rondo Layer

We used a combination of Bondo body filler and Fiberglass resin in a 70/30 mix to create an easier to work with Bondo that can be slushed around.

Majora's Heart

Horns cut off! More sanding next. We will also be filling in void spaces with Bondo and get a better base for the horns. 

Horns have holes

Luis using Bondo to fill holes for the base of the horns to fit while casting. 

Apoxie Sculpt

Alannah following the guides and applying Apoxie Sculpt out of the clay extruder to get a perfect round surface. 

More spot Putty!

Alannah applying spot putty on the edges of the apoxie sculpt and other areas. 

More Spot putty!

More details carved in, breathing holes drilled and spot putty applied on the base of the horns and other areas.

Final spot putty layer

Before I spray the final coat of paint before molding, I did an entire layer of spot putty to be able to sand everything down to a gloss smoothness. 

Primer coat

I sprayed the mask with a white/gray primer paint. 

Final gloss coat

Final coat of gloss spray paint. Spraying it in gloss will allow casts to come out smoother than normal.

Clay seams

Clay was applied to the seams to prevent the molding silicone to pour on the inside and ultimately wasting product. This also raises the height of the cast so there is room to sand the edges down.

Thicker layer applied

After a few print layers, the silicone starts to build up and you can do thicker layers. 

Mother Shell Box Built

 

Once enough silicone is applied, a box is made to keep the shell from pouring out.