PolyCup - 3D Printable Male Athletic Cup

PolyCup – 3D Printable Airsoft Protective Cup

PolyCup is a 3D-printable protective cup designed specifically for airsoft use. The faceted outer shell increases structural rigidity and distributes impacts across multiple surfaces instead of concentrating force at the center.

The design uses a deep protective profile, creating additional distance between the impact point and the body. This allows the shell to flex slightly and spread energy across the structure before it reaches the wearer.

A wide perimeter lip creates a 360° protective seal, helping the cup sit comfortably against the body without requiring a jockstrap or compression shorts.

Ventilation holes improve airflow and help reduce heat buildup during extended use.

Key Features

Faceted shell geometry
Improves strength and helps distribute impacts across the structure.

Deep protective profile
Provides additional space between impacts and the body to reduce pressure.

360° perimeter seal
Helps the cup sit securely and comfortably against the body.

Ventilation holes
Improves airflow and reduces heat buildup during long use.

Optimized for FDM printing
Designed to print reliably with common filament materials.

Wearing Options

PolyCup is designed to work without a jockstrap.

Option 1 – Underwear Hold

1. Place the cup directly against the groin.
2. Put on snug boxer briefs or athletic underwear to hold it in place.

Option 2 – Sandwiched

1. Put on snug underwear.
2. Place the cup over the groin area.
3. Wear another pair of snug underwear over it to hold it securely.

Because of the deeper design, the cup may not fit inside some compression-short cup pockets.

Recommended Print Settings

Material: PETG or ABS
Walls / Perimeters: 6
Infill: 30%
Layer Height: 0.2 mm
Nozzle: 0.4 mm or larger

Supports: Auto Tree Supports Enabled

PLA is not recommended because it can become brittle under impact.

Size Scaling (Outer Width)

Use uniform scaling so all dimensions adjust automatically.

Teen: 75 mm
Adult: 85 mm
XL: 95 mm

Scaling smaller than teen size will reduce strength because wall thickness and reinforcement geometry become thinner.

Intended Use

PolyCup is intended for airsoft protection where BB impacts are common.

This is an experimental 3D-printed design and is not safety-certified protective equipment. Use at your own risk.