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A $4 Billion Empire Broke Open Source. They Threatened One Developer. It Backfired.

They took open-source code for free, then threatened the lone developer who actually followed the license. The Internet had other plans.

9 min read2 days ago

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A 3D-printing giant vs. one coder after work.

One company owns close to a third of every 3D printer sold on Earth. It generates more than $250 million (ยฅ2 billion) in annual profit; it is run by a founder who used to ship drones; and millions of people trust it in their workshops.

On the other side stands one man who writes code in his spare time and gives it away for free.

The company sent its lawyers after the developer. They should have real enemies like counterfeiters stamping out fake machines, rivals cloning their hardware, but no, they chose the volunteer developer.

The threat used heavy words.

Impersonationโ€ฆ

Unauthorized reverse engineeringโ€ฆ

The company chose those words to scare the developer into taking his code down and giving up.

This is the story of a $4 billion company that took free code and built a business on it. It spent four years breaking the one conditionโ€ฆ

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Can Artuc

Written by Can Artuc

The architect, dad. 20+ years in tech. I only write experience-backed stories about Linux and open source. E-mail: c@canartuc.com. More articles: canartuc.com

Responses (24)

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I am thinking that multimillion $ companies should pay for the free software they use, as in contribution from their earnings to the manteniment and enhancement of the software

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Iโ€™m not siding either way, as I am not a lawyer, I am not a user, or any way involved in this. Just wanted to add some observationsโ€ฆ

Indication that Bambu wrote about it in their blog I assume relates to this blog entry [1]. This seems to talkโ€ฆ

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Paweล‚ Jarczak, a Polish developer, did the obvious thing. On 23 April 2026, he published a fork of OrcaSlicer that let owners print over their own network again, with no subscription an...

As they say, never underestimate the power of free will and open source.

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