kpoc/3d-models

Printables 3D Models Dataset

Dataset Description

This dataset is a large-scale collection of 3D models and their associated metadata, scraped from Printables.com. It is designed to aid researchers and developers in training machine learning models for 3D tasks, such as Text-to-3D generation, Image-to-3D generation, and 3D feature extraction.

The dataset has been meticulously processed to optimize for machine learning pipelines:

• Deduplicated: Only unique 3D files within each model are kept.
• Standardized Formats: Complex mesh formats (.3mf, .obj) have been automatically converted to standard .stl files.
• Compressed Visuals: High-resolution rendered preview images are compressed and normalized to an 800x800 maximum dimension in RGB JPEG format.
• Parquet Metadata: All relational metadata (tags, original category, descriptions) is efficiently indexed in Parquet format.

Dataset Structure

The dataset uses a sharded WebDataset-style architecture to easily support terabytes of data. The data is grouped into 10 GB .tar archives.

Inside the .tar archives, the structure is organized by the original Printables Model ID:

data_0001.tar
 ├── <model_id>/
 │    ├── images/
 │    │    ├── image_1_compressed.jpg
 │    │    └── image_2_compressed.jpg
 │    └── stls/
 │         ├── part_1.stl
 │         └── part_2.stl

Metadata (metadata.parquet)

The root of the repository contains a metadata.parquet file. Each row represents a single 3D model project and contains:

• model_id: The unique ID from Printables.
• name: The title of the 3D model.
• description: The raw HTML/Text description from the creator.
• tags: A list of tags applied to the model.
• printables_category: The hierarchical category path on Printables.
• image_paths: A list of paths pointing to the images inside the tar archive.
• stl_paths: A list of paths pointing to the STL files inside the tar archive.
• shard_file: The name of the .tar archive that contains this model's data.
• license: The copyright license applied to the 3D model project.
• source: The direct URL to the original model page on Printables.

Considerations for Using the Data

Licensing

This dataset is an aggregate of user-generated content hosted on Printables. The models contained within this dataset are subject to their individual licenses chosen by their respective creators (predominantly various Creative Commons licenses). Users of this dataset are responsible for respecting the original licenses, especially concerning commercial use and attribution.

Bias and Limitations

The dataset is inherently biased towards FDM 3D printing and the maker community. It heavily features mechanical parts, tabletop miniatures, organizers, and functional prints. It may not generalize perfectly to architectural, cinematic, or organic gaming 3D models without fine-tuning.