Parametric SVG Keychain Maker

Create unique 3D printable keychains from AI-generated artwork in just a few minutes.

This OpenSCAD generator is the final step of a simple workflow:

ChatGPT → Black & White Image → SVG → 3D Keychain

PROMPT AT DOCUMENTATION

 

Recommended Workflow

1. Use the included ChatGPT prompt to generate a clean black-and-white design.

2. Convert the generated image into an SVG vector using any vectorization tool. 

   EX : https://picsvg.com/

3. Import the SVG into this Parametric SVG Keychain Maker.
4. Customize the size, border, keyring position, thickness, and base style.
5. Export a ready-to-print 3D model.

No CAD experience is required.

Features

• Import any SVG
• Multiple base styles
• Automatic scaling
• Adjustable border thickness
• Automatic/manual bridge generation
• Flexible keyring placement
• Rotate and mirror
• Single-color or multi-color printing
• Export separate parts for AMS/MMU printing
• Optimized for FDM 3D printing

Perfect for creating:

• Custom name keychains
• Anime and mascot keychains
• Company logos
• Gifts
• Personalized accessories
• Small business products

Included Bonus

I've also included my ChatGPT prompt that I personally use to generate clean black-and-white artwork specifically optimized for SVG conversion and 3D printing.

This allows anyone—even without design experience—to create unique printable keychains in minutes.
 

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Trình tạo móc khóa SVG tham số
Xem prompt tham khảo ở phần documentation

Tạo móc khóa in 3D độc đáo từ hình ảnh AI chỉ trong vài phút.

Script OpenSCAD này là bước cuối cùng của quy trình tạo mô hình rất đơn giản:

ChatGPT → Ảnh trắng đen → SVG → Mô hình 3D

Quy trình đề xuất

1. Sử dụng prompt ChatGPT đi kèm để tạo hình ảnh trắng đen.
2. Chuyển hình ảnh sang định dạng SVG bằng bất kỳ công cụ vector hóa nào.
   VD : https://picsvg.com/
3. Nhập file SVG vào Parametric SVG Keychain Maker.
4. Tùy chỉnh kích thước, viền, vị trí khuyên, độ dày và kiểu đế.
5. Xuất mô hình 3D sẵn sàng để in.

Không cần biết thiết kế CAD.

Tính năng

• Hỗ trợ mọi file SVG
• Nhiều kiểu đế
• Tự động căn tỷ lệ
• Điều chỉnh độ rộng viền
• Tự động hoặc thủ công nối các phần rời
• Đặt vị trí khuyên linh hoạt
• Xoay hoặc lật mô hình
• Hỗ trợ in 1 màu hoặc nhiều màu
• Có thể xuất riêng từng phần để in AMS/MMU
• Tối ưu cho máy in FDM

Thích hợp để tạo:

• Móc khóa tên
• Móc khóa logo
• Nhân vật hoạt hình
• Quà tặng
• Đồ lưu niệm
• Sản phẩm cá nhân hóa

Tặng kèm Prompt ChatGPT

Mình cũng chia sẻ prompt ChatGPT mà mình đang sử dụng để tạo hình ảnh trắng đen tối ưu cho việc chuyển sang SVG và in 3D.

Nhờ đó, ngay cả người chưa biết thiết kế cũng có thể tự tạo những mẫu móc khóa độc đáo chỉ trong vài phút.

PROMPT CHATGPT

Create a clean, professional-quality black-and-white two-color vector image.

INPUT
1. Subject image (person, pet, object, logo, etc.) (Optional)
2. Reference font image (Optional)
3. Reference layout/style image (Optional)
4. Name: [NAME]

OBJECTIVE

Create a complete, visually balanced, and attractive design consisting of:
- A minimalist icon recreated from the subject image.
- The text [NAME], designed in the style of the reference font (if provided).
- A layout inspired by the reference composition (if provided), using it only as inspiration, never as a direct copy.

The goal is to produce a polished, premium design—not simply placing an icon beside some text.

ICON
- Analyze the subject image and recreate it as a minimalist kawaii icon.
- Preserve only the most recognizable characteristics.
- Do NOT directly trace the original image.
- Use smooth curves, rounded shapes, minimal details, friendly expressions, and a clear silhouette.

TEXT
- If a reference font image is provided, analyze its design language and create a completely new version of the text [NAME] that captures the same style, including stroke weight, serif/sans-serif characteristics, handwritten or geometric feel, corner treatment, slant, spacing, decorative details, and overall personality.
- Do NOT use any default or existing font.
- If no font reference is provided, analyze the subject, its style, the content, and the name itself to create a custom font that best matches the overall design.

LAYOUT
- If a layout reference is provided, use it only for inspiration, never copy it directly.
- Automatically optimize the size, position, spacing, and visual balance between the icon and the text.
- For long names, reduce the icon size and allocate more space to the text.
- For short names, enlarge the icon for better balance.
- The icon may be rotated slightly (±5°), partially overlap the text, or connect naturally with the lettering if it improves the composition.

PROPORTIONS
- Icon: approximately 35–45% of the overall design.
- Text: approximately 55–65%.
- The overall composition should be compact, balanced, cute, and premium.

SVG OBJECT STRUCTURE
- The icon must be a single solid black shape.
- Each letter must be an individual solid black shape, although adjacent letters may naturally touch.
- A small connector between the icon and the first letter is allowed if it improves the design.
- Do NOT merge everything into one large silhouette.
- Do NOT create a black background.

WHITE DETAILS
The icon may contain white cutout areas for eyes, nose, mouth, ears, hair, fur, or accessories, but these openings must be large enough to print clearly with FDM 3D printing.

TEXT
- Solid black lettering.
- No outlines.
- No hollow letters.
- Preserve only the natural enclosed spaces found in letters such as A, B, D, O, P, Q, and R.

DO NOT CREATE
- Sticker outlines
- Outer borders
- Decorative frames
- Drop shadows
- Gradients
- Textures
- Large merged silhouettes
- Black backgrounds

OPTIMIZED FOR 3D PRINTING
The design must be suitable for two-color FDM printing:
- Reinforce thin or fragile features.
- Avoid extremely thin lines, tiny holes, floating islands, sharp corners, or delicate details that could break.
- Favor smooth, rounded curves throughout the design.

SVG REQUIREMENTS
- Use only Black (#000000) and White (#FFFFFF).
- White background only.
- All paths must be closed.
- No duplicate paths.
- No overlapping paths.
- No self-intersecting paths.
- Clean, precise geometry that can be easily extruded into a 3D model.