Frequently Asked Questions

🔧 What is an STL file?

An STL file (.stl) is a standard 3D model format used in 3D printing and rapid prototyping. STL stands for Stereolithography, one of the earliest forms of 3D printing.

STL files represent a part using a mesh of triangles that define its surface geometry. They do not include details like color, texture, or material—only the shape of the part itself.

🔒 Is it safe to upload my files?

Yes. Your files are processed directly in your browser for preview. We do not store or access your files during this step.

⚡ Do I need to create an account?

No account is required. Simply upload your STL file to preview your part instantly.

📦 Are there file size limits?

For the best performance, we recommend uploading files up to 50 MB.

🚀 What happens after I upload?

Once you’ve reviewed your part, Print My Parts makes it easy to move forward.
We handle everything from printing to delivery—so you can go from file to finished part, fast.