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Sample 51 KB STL File — Free Download for Testing

sample-model-tree.stl · 51,139 bytes

Exactly 51,139 bytesmodel/stlDirect linkNo sign-upFree for any use

This is a 51 KB sample STL file — exactly 51,139 bytes, generated by us rather than scraped, so the size is deliberate and the contents are free of anyone else's copyright. 336 facets • ASCII STL. Use it to test an upload limit near 51 KB, to time a transfer, or as a fixture whose hash never changes.

Sizes here are decimal: 51 KB means 51,139 bytes, not 0.05 MiB. If your limit is expressed in binary units, check the exact byte count above before assuming this file is under it.

File details

File namesample-model-tree.stl
Exact size51,139 bytes (51 KB / 50 KiB)
FormatStereolithography 3D model (ASCII) (.stl)
MIME typemodel/stl
SHA-256bee4d5c89b5a7137d13fdf11c5f61d6ba442f9476c83e1bd819db3a63596ec05
Direct URLhttps://pnb-website-bucket.s3.us-east-2.amazonaws.com/samples/data/stl/sample-model-tree.stl

Download from the command line

curl -O https://pnb-website-bucket.s3.us-east-2.amazonaws.com/samples/data/stl/sample-model-tree.stl
shasum -a 256 sample-model-tree.stl

Other STL sizes

Frequently asked questions

How big is this STL file exactly?

Exactly 51,139 bytes (51 KB using decimal units, where 1 MB = 1,000,000 bytes). Binary-unit tools will show a slightly different number: 0.05 MiB. The SHA-256 on this page lets you confirm you received the same file byte for byte.

What can I test with a 51 KB STL file?

Upload size limits that sit near 51 KB, transfer timing, storage quotas, and any pipeline that behaves differently above or below a size threshold. Pick the file just under and just over your limit to find out whether the limit is inclusive.

Is this file free to use commercially?

Yes. It is generated from scratch by our own open script — no third-party copyright, no scripts or macros inside — and free for any purpose including commercial products and redistribution, with no attribution required.

Found a problem, or something that could be better? We read every message and we fix things quickly.

Sample Files by Pine & Birch — technology consulting, Toronto. Free to use, no signup, no attribution required.