# Pattern Grading Calculator MCP for AI Agents AI Agent Connect

> Pattern Grading Calculator scales sewing patterns between sizes using industry-standard ASTM rules. It handles the math for enlarging or reducing garment patterns for women, men, and children, ensuring every measurement stays proportional across the size run.

## Overview
- **Category:** mathematics
- **Price:** Free
- **Endpoint:** https://edge.vinkius.com/vk_preview_RfT6taG5MBbyQNs0GywOLqmc6wlMtVFLznSetj3B/ai-agent-connect
- **Tags:** sewing, pattern-making, grading, astm, garment-production

## Description

Pattern making is a math-heavy game of proportions. When you need to scale a garment from a small to a large, you can't just "make it bigger" without messing up the fit at the bust, waist, or hips. This Connector handles the heavy lifting by applying official ASTM standards to your measurements. Instead of manual spreadsheets or guessing how much to add to a sleeve or neck, your agent can calculate exactly how much a garment needs to grow for a specific size jump. It takes the raw data of a base size and outputs the precise measurements for every landmark on the body. It's a huge time-saver for production teams who need to move from a single prototype to a full size run quickly. You'll find this in the Vinkius catalog alongside other professional production tools, making it easy to build a complete manufacturing workflow. It turns a tedious calculation into a single request, so you can focus on the design rather than the arithmetic. By automating the grade rules, you ensure that every garment in your collection fits as intended, regardless of the size. This eliminates the risk of human error during data entry and gives you a reliable blueprint for your factory.

## Tools

### compute_pattern_grading_table
Generate a complete table showing how much every individual pattern point should move. This provides the full blueprint for every size in your run.

### distribute_size_increments
Split a total circumference change into specific increments for the bust, waist, and hips. It ensures the growth is proportional to the human body.

### calculate_standard_increment
Determine the total amount of circumference change required for a single size jump. This helps you know the baseline growth for the entire garment.

## Prompt Examples

**Prompt:** 
```
I need to scale a women's blouse from a size 8 to a size 12. What's the total growth?
```

**Response:** 
```
For a 2-size jump using the Women's ASTM standard (D5585), the total cumulative change in circumference is 5.0 units.
```

**Prompt:** 
```
If I have 6cm of total growth to spread out for a new shirt, how much goes to the waist?
```

**Response:** 
```
Based on standard distribution rules, that 6cm change is split into:

* **Bust:** 2cm
* **Waist:** 2cm
* **Hip:** 2cm
```

**Prompt:** 
```
Generate a grading table for a men's shirt. Base measurements are Bust: 100, Waist: 80, Hip: 85. I need it for 1 jump up.
```

**Response:** 
```
Here is your grading table for a 1-size jump using the Men's standard:

| Landmark | Base | Jump |
| :--- | :--- | :--- |
| **Bust** | 100 | +2.5cm |
| **Waist** | 80 | +2.5cm |
| **Hip** | 85 | +2.5cm |
| **Neck** | - | +0.5cm |
| **Armscye** | - | +0.3cm |
```

## Capabilities

### Calculate total circumference growth
Find the total amount of growth needed for a single size jump based on ASTM standards.

### Split growth across body landmarks
Divide a total circumference change into specific increments for the bust, waist, and hips.

### Generate full size-run tables
Create a complete measurement difference table for every size in your production run.

### Apply ASTM Women's standards
Use ASTM D5585 rules to ensure correct grading for women's apparel.

### Apply ASTM Men's standards
Use ASTM D6458 rules to ensure correct grading for men's apparel.

### Apply ASTM Children's standards
Use ASTM D6192 rules to ensure correct grading for children's apparel.

## Use Cases

### Scaling a women's dress
A designer wants to scale a dress from a Size 6 to a Size 12. The agent calculates the total growth and distributes it across the bust and hips.

### Creating a children's line
A manufacturer needs to scale a toddler outfit. The agent uses the Children's standard to find the correct increments for a 2-size jump.

### Production verification
A manager wants to check if a current pattern meets ASTM D6458. The agent pulls the standard increments to verify the math.

### Bulk size run generation
A factory needs a table for a new men's shirt. The agent generates a full table for sizes S through XXL in one go.

## Benefits

- Stop guessing growth amounts by using calculate_standard_increment to get exact ASTM-compliant circumference changes for every size jump.
- Ensure proportional fit across the body by using distribute_size_increments to split growth between the bust, waist, and hips.
- Save hours of manual data entry by using compute_pattern_grading_table to generate a complete measurement sheet for a full size run.
- Maintain consistency across different garment types by switching between Women's, Men's, and Children's ASTM standards instantly.
- Reduce production errors by providing your agents with a standardized way to handle complex pattern grading math.

## How It Works

The bottom line is you get a production-ready grading table without doing any manual math.

1. Input your base garment measurements and the target size jump.
2. Select the correct ASTM standard for the garment's category.
3. Receive a complete table of new measurements for every pattern point.

## Frequently Asked Questions

**What is the Pattern Grading Calculator used for?**
It's used to automatically calculate how garment measurements should change when you scale them from one size to another. It ensures your patterns stay proportional as they get bigger or smaller.

**Does the Pattern Grading Calculator follow industry standards?**
Yes, it uses the official ASTM standards for Women's, Men's, and Children's garments. This means your grading will be compliant with standard manufacturing rules.

**Can I use the Pattern Grading Calculator for custom sizes?**
It's designed to work with standard ASTM rules. If you have a very unique custom grading system that doesn't follow these standards, this tool might not be the right fit.

**How does the Pattern Grading Calculator handle different body types?**
It uses standard distribution rules to split growth between landmarks like the bust, waist, and hips. This ensures the garment grows in a way that follows natural body proportions.

**Can the Pattern Grading Calculator generate a full size run?**
Yes, it can generate a complete table showing the measurement changes for every individual point on a pattern for your target sizes.

**Is the Pattern Grading Calculator good for children's clothing?**
Yes, it includes the ASTM D6192 standard specifically for children's garments, making it perfect for kids' wear production.

**What industry standards does this tool use?**
The tool follows ASTM D5585 for Women, D6458 for Men, and D6192 for Children to ensure consistent fit across sizes.

**How is the circumference change distributed?**
Using the `distribute_size_increments` tool in 'Standard' mode, the total change is split equally (1/3 each) between the bust, waist, and hip measurements.

**Can I generate a full table for all pattern points?**
Yes, by using `compute_pattern_grading_table`, you can provide base measurements and a target size to receive a complete list of grade rules for landmarks like neck, armscye, and shoulder.