How to Make 3D Printed Shoe Soles for Cosplay – Complete Step-by-Step Guide

Introduction

In this tutorial, Kara (@wayra.exe) demonstrates the process of designing and building custom 3D printed shoe soles for cosplay. Combining digital modeling, traditional shoemaking techniques, and upholstery fabrics from Big Z Fabric, the project walks through creating accurately fitted shoes from scratch, from tracing the shoe last to assembling the finished footwear.

The tutorial also highlights the trial-and-error involved in developing functional 3D printed soles and offers insight into both digital and physical shoemaking.

Materials Needed

Fabrics

• Big Z Distressed Velvet Flocking Fabric (used for the shoe uppers)

Additional Materials

• Shoe lasts
• Lasting boards
• TPU filament
• E6000 adhesive
• Contact cement
• Non-toxic cement (for insoles)
• Tread material

Tools

• Adobe Illustrator
• Blender
• 3D printer
• Sewing machine
• Heat source for forming internal components
• Hammer
• Respirator
• Shoemaking tools

Step 1: Digitize the Shoe Last

Begin by tracing the outline of the shoe last.

The traced shape is then vectorized in Adobe Illustrator before being imported into Blender.

Using the outline as a reference ensures that the digital model matches the exact size and proportions of the physical shoe last.

Because two identical pairs are needed in different sizes, the process is repeated for each shoe size.

Step 2: Model the Shoe Sole

Inside Blender, sculpt the shoe sole around the imported shoe last reference.

This stage involves:

• Refining the shape
• Correcting geometry
• Adjusting proportions

The creator notes that this is one of the most technically challenging parts of the project, especially for those with limited Blender experience.

Step 3: Construct the Shoe Uppers

Before printing the final soles, create the upper pattern and sew the shoe uppers together.

The uppers are made using Big Z Distressed Velvet Flocking Fabric, chosen for its leather-like appearance, textured finish, and ease of sewing.

The creator particularly recommends the material because it feeds smoothly through the sewing machine while providing a distinctive surface texture.

Step 4: Last the Shoes

Prepare the shoe components by:

• Heat-forming internal structural pieces.
• Positioning them between the lining and outer fabric.
• Placing the upper over the shoe last.
• Attaching the upper to the lasting boards.

The uppers are secured using E6000 adhesive.

Because of the adhesive fumes, the creator emphasizes wearing a respirator throughout this stage.

Step 5: Attach the Printed Soles

After the uppers are completed, test the fit of the 3D printed sole.

The initial prints reveal several problems, including:

• Incorrect scaling.
• Geometry errors.
• TPU printing inconsistencies.

The creator estimates going through more than twelve prototypes before achieving a correctly fitting sole.

Step 6: Assemble the Shoe

Once the final printed sole fits correctly:

• Attach the sole using contact cement.
• Allow the adhesive to fully cure.

While waiting, construct the shoe insoles using a separate non-toxic adhesive.

After curing, attach the tread material to the bottom of each sole using contact cement.

Tips from the Creator

• Trace the physical shoe last first to create an accurately scaled digital model.
• Model each shoe size separately when making multiple sizes.
• Expect to spend significant time refining geometry during digital sculpting.
• Test-fit shoe uppers before committing to final sole prints.
• Distressed Velvet Flocking Fabric offers a leather-like appearance while remaining easy to sew.
• Wear a respirator whenever working with strong adhesives such as E6000 or contact cement.
• Be prepared for multiple prototype prints before achieving the correct fit.
• Allow adhesives to cure completely before adding tread or wearing the finished shoes.

Final Result

After numerous design revisions and more than a dozen prototype prints, the finished cosplay shoes combine custom 3D printed soles with professionally constructed fabric uppers. The completed footwear demonstrates how digital modeling, additive manufacturing, and traditional shoemaking techniques can be combined to create durable, accurately fitted cosplay shoes from scratch.