All pricing scripts can be written with the JavaScript Programming Language.

There are 3 places in the software where pricing scripts can be used:

• Pricing for Materials (Sample Scripts)

• Pricing for Post Processing (Sample Scripts)

• Pricing for Order Fees (Sample Scripts)

For all scrips the same principles apply:

• Preset Variables are available to be used for pricing

• Both Mathematical Expressions and JavaScript Functions can be used in the Pricing Script

• The Last Line of the script must output the final price

General Examples to Understand Pricing Concepts

In the most general case, the total price consists of three independent parts: material costs, machine costs and additional costs, such as labour, platform preparation cost, and so on. Naively, the formula can be written as follows:

let materialUsed;
let materialPrice;

let machineTime;
let hourlyRate;

let otherCosts;
let margin;

let price = (materialUsed*materialPrice + machineTime*hourlyRate + otherCosts)*(1
+ margin);

At the end of the formula, one needs to write the variable whose value should be returned. Typically, one ends the formula with price; written at the very bottom. If one want to check if the algorithm gives the correct value of other variables, e.g. of machine time, it is necessary to end the formula with the JS name of that variable (machineTime; in this case).

Example Pricing Scripts to Illustrate Concepts

Constant Pricing

If a fee or part should be priced the same for all users and for all orders, that can be input a single number into the script. Examples might be a fixed processing cost, a handling fee or a fixed price for internal prototyping in your company.

20.50  // default prototyping fee

Using Variables and Mathematical expressions

Each new variable must be defined with the keyword let. Then the variables can be used with normal arithmetic functions.

let a = 10 + 20;   // addition
let b = 30 - 5;    // subtraction
let c = 2 * 5;     // multiplication
let d = 10 / 2;    // division
let e = 10 ** 2    // exponentiation
a + b + c + d + e; // last line contains final price

Pre-defined Variables from Model Analysis

Depending on the algorithm type (Materials, Post-Processing, Order Fees), there are different sets of variables available within the platform. Those variables will fill in use value pulled from the uploaded and analyzed 3D model.

let cost1 = model.volume * 0.0002; // model.volume in cubic mm
let cost2 = model.area * 0.02;     // model.area in square mm
let price = cost1 + cost2;
price;                             // last line contains final price

Comparison and Relational operators

Providing Conditions & Discounts

In order to offer competitive pricing, especially for larger orders or particular customer groups, the if/else functionality can adjust the price based on specific conditions. Additional support variables are available under User-based Pricing.

let price = model.volume * 0.0002;  // model.volume in cubic mm

// Add a 10% Discount when ordering more then 10 items
if(item.quantity > 10) {
    price = price * 0.90;
}

// Provide a 5% Discount for Users with a @3yourmind Address
else if(user.email && user.email.endsWith('@3yourmind.com')) {
    price = price * 0.95;
}

// 90$ Discount if price is above 1500
else if(price > 1500) {
    price = price - 90;
}

price; // last line contains final price