Raw Material Usage

By tracking and rewarding minimal raw material usage per order, 3DOS actively promotes sustainable practices within the platform. Manufacturers who minimize waste receive bonus rewards.

Formula

raw_material_reward = min(
    # Total reward capped at 2% of order value
    order_value * 0.02,
    # Base reward based on material cost and sustainability
    (raw_material_cost * material_consumed / order_value) * (
        # Sustainability bonus (if applicable)
        1 + 0.005 * I(sustainable_material)
    )
)

Explanation

• raw_material_reward: The earned reward for raw material consumption (in USD).

• order_value: Value of the order in USD.

• raw_material_cost: Cost of raw material per kg (in tokens).

• material_consumed: Weight of raw material used (in kg).

• sustainable_material: Indicator function (1 if sustainable material used, 0 otherwise).

• I(sustainable_material): Ensures the sustainability bonus applies only when applicable.

Key considerations

• The reward is capped at 2% of the order value using min.

• The base reward considers the proportional cost of raw material used to the order value.

• The sustainable_material bonus adds 0.5% of the order value (weight of 0.005).

Example

• order_value = 20 USD

• raw_material_cost = 40 USD/kg

• material_consumed = 0.1 kg (100 grams)

• sustainable_material = 1 (using sustainable material)

Calculations

1. Base Reward

   • (40 * 0.1 / 20) = 0.2 (proportional cost)

   • 0.2 * (1 + 0.005 * 1) = 0.201 (with sustainability bonus)

2. Capped Reward

   • min(20 * 0.02, 0.201) = 0.4 (capped at 2% of order value)

Output

The manufacturer receives a reward of 0.4 USD in form of tokens for their raw material consumption, considering both cost and sustainability factors.