20 September 2013. New York, Brooklyn Navy Yard. On the eve of World Maker Faire, the Dutch printer maker Ultimaker unveiled the Ultimaker 2. The same stage introduced a website: YouMagine[1][2].
The promise was plain. People would not just download files; they would build on each other’s work. Instead of sharing only .stl meshes, they would share the native source files behind a design[1][3]. Ultimaker did not even put its own brand on the site. The goal was an open community that reached beyond its own customers[2].
Thirteen years later, on 5 November 2026, we opened youmagine.com. The first page held 20 listings. Almost every one carried a price tag.
This article is about what happened between those two screens.
YouMagine at a Glance
| Launched | September 2013 by Ultimaker (Netherlands), alongside the Ultimaker 2[1][2] |
|---|---|
| Original purpose | Sharing source files and collaborating; an open rival to Thingiverse[3][4] |
| Owner today | MyMiniFactory (London); the site calls itself “a MyMiniFactory company”[9][10] |
| Acquisition year | Sources disagree: the trade press says 2024, MyMiniFactory’s own statement points to 2025[7][8][11] |
| Focus today | A design marketplace for the RC (radio-controlled) hobby[7][9] |
| Paid-file license | Personal use only; no selling prints, no sharing files, no remixes[12] |
| Sister platforms | MyMiniFactory, Thingiverse (since February 2026), SoulCrafted Slicer[7][8] |
| Checked on | 5 November 2026 |
Why it was launched: two breaks, nine months apart
To understand YouMagine, go back to the autumn of 2012. MakerBot, which had grown out of the open-source RepRap movement, said around September 2012 that it would not share the physical design or the interface of its Replicator 2[5]. The terms of use on Thingiverse, the model library MakerBot ran, were already a point of friction in the community[5][6].
The second break came in June 2013, when the industrial 3D printing company Stratasys acquired MakerBot[5][6]. The largest open model library now sat inside a publicly listed corporation.
Three months later Ultimaker announced YouMagine. EE Times ran the story under the headline “a competitor to Thingiverse” and explained the difference: on Thingiverse each design had a single owner, while YouMagine would also allow large projects with many collaborators. The Cura slicer could upload straight to YouMagine through the same API any developer could use[3].
In short, YouMagine was less a website than a thesis: a design is not a product, it is a starting point to build on.
First turn: building on it is now forbidden
YouMagine’s current “About us” page describes the site in one line: “The marketplace for RC hobby and 3D printing.”[9] Designers set their own prices, and becoming a premium designer is free[9].
What we saw on the first screen of the designs page on 5 November 2026[10]:
- Nearly all 20 listings were RC vehicle parts and accessories: 1:10 scale body parts, bumpers, radio mounts, driver figures.
- Prices started at $1.99; one chassis kit was listed at $999. Several listings carried “SALE” and “EXCLUSIVE” tags.
- The only listing without a visible price was a giveaway.
- The listing page had no license filter; the footer linked only to a “Premium License” page.
The real turn is on that license page. The standard license for paid files allows personal, non-commercial use. Buyers may not share the file, may not sell prints, and may not make any derivative work, remixes included[12]. Creative Commons is not mentioned anywhere on the page[12].
The 2013 promise was “build on each other’s work”. The 2026 license, for paid files, forbids exactly that.
It is easy to read this as a betrayal. MyMiniFactory tells it differently: in its February 2026 announcement of the Thingiverse purchase, it says it turned YouMagine from “an aging file repository” into a community where “RC designers earn a living”[11]. The open archive was fading; the paid model kept it alive. Both readings look at the same facts.
| 2013 (launch) | 2026 (today) | |
|---|---|---|
| Owner | Ultimaker[1] | MyMiniFactory[9] |
| Audience | The wider maker community, brand-neutral[2] | The RC hobby community[9] |
| Core idea | Source-file sharing and collaboration[1][3] | A marketplace where designers sell files[9] |
| Remixing | The point of the platform[1] | Forbidden for paid files[12] |
| Relation to Thingiverse | Rival[3][4] | Sister platform under the same owner[7][8] |
Second turn: under one roof with what it was built to escape
The last row of that table needs explaining, because the story turns once more.
At the end of August 2022, Stratasys merged MakerBot with Ultimaker. The new company was branded UltiMaker, and Thingiverse moved under its management[5][13]. The company that had built YouMagine as an alternative to Thingiverse now owned Thingiverse too.
Then, on 12 February 2026, MyMiniFactory bought 100% of Thingiverse from UltiMaker[7][8]. YouMagine was already part of MyMiniFactory. The platform born as Thingiverse’s rival and Thingiverse itself now sit under the same company and the same “SoulCrafted” umbrella[7][8].
A rivalry that changed hands three times in thirteen years ended up as two tabs of one company.
The limit: what we do not know
Two points could not be verified while we prepared this article, and we are not filling them with guesses.
- The acquisition date. 3D ADEPT and VoxelMatters place the deal in 2024[7][8]; MyMiniFactory’s 2026 statement says “last year”, which means 2025[11]. We found no primary announcement with an exact date.
- What happened to the old open designs. We found no data on how many designs uploaded under Creative Commons between 2013 and 2023 are still reachable. The listing page offers no license filter[10].
The practical takeaway: check the license on the page of every file you download from YouMagine. If you do not see an open license, assume the restrictive license for paid files applies[12].
When is YouMagine the right choice today?
| What you need | Our take |
|---|---|
| 1:10 RC vehicle parts, body accessories, radio mounts | This is where YouMagine now focuses; most listings are paid[9][10]. |
| An openly licensed model you can modify and reshare | Check each design’s license; remixing paid files is forbidden[12]. |
| A large, general-purpose free archive | See our list of 3D model sites, where we compare the options. |
Final word
YouMagine was founded on the idea that a design is not a product to sell but a starting point to build on. Thirteen years later, what kept it alive was the opposite of that idea.
The license on a file you upload to a model site can be shaped not only by the site’s owner today, but by its owner tomorrow.
Two questions for the reader:
- When you share your own designs, do you upload the source file too, or only the .stl?
- For an open archive to survive, is moving to a paid model better than shutting down?
Sources
- Engadget (20 Sep 2013): Ultimaker debuts its latest 3D printer ahead of World Maker Faire
- Adafruit (26 Sep 2013): Ultimaker 2 Launch, Introduces YouMagine and UltiLabs
- EE Times (Oct 2013): Ultimaker Launches YouMagine, a Competitor to Thingiverse
- HotHardware: Ultimaker Debuts Ultimaker 2 With Open Source Cura Software and YouMagine Website
- Wikipedia: MakerBot (Replicator 2, Stratasys acquisition, 2022 Ultimaker merger)
- Hackaday (2 Oct 2013): 3D Printering: The Problem of Thingiverse
- 3D ADEPT (13 Feb 2026): UltiMaker’s Thingiverse becomes a MyMiniFactory company
- VoxelMatters (12 Feb 2026): MyMiniFactory acquires Thingiverse from Ultimaker
- YouMagine: About us (accessed 5 Nov 2026)
- YouMagine: Designs, first page (observed 5 Nov 2026)
- XDA Developers (Feb 2026): MyMiniFactory has acquired Thingiverse
- YouMagine: Premium Content License (accessed 5 Nov 2026)
- Stratasys press release (13 Sep 2022): Stratasys Completes Merger of MakerBot With Ultimaker
More platforms like this one are compared in our list of 3D model sites.
