Selling Your Own Files, card by card

Is it worth it? 1 of 8

So you want to make money from selling files, eh?

29 cards in three sections, about ten minutes.

SwipeSwipe to the end to find out how.

You design things for a hobby you are in. Twenty-nine cards on whether the people in it will pay for the files, and how to get them selling.

Every figure is a platform's own published number or a seller's own published result.

Is it worth it? 2 of 8

People pay for files

Nine of Cults3D's top ten paid files are print-in-place flexi animals. The list ranks by paid downloads, so every row on it is a sale, at https://cults3d.com/en/creations/best-sellers (opens in a new tab).

The nine, as listed. Tap one to open its page.

Articulated Dragon, a listing image on Cults3D

Articulated Dragonby mcgybeer

Crystal Dragon, a listing image on Cults3D

Crystal Dragonby Cinderwing3D

Cute Flexi Frog, a listing image on Cults3D

Cute Flexi Frogby FlexiFactory

Cute Flexi Skeleton, a listing image on Cults3D

Cute Flexi Skeletonby FlexiFactory

ZOU Ghostby ZOU3D

Rose Dragonby Cinderwing3D

Skeleton T-Rex, a listing image on Cults3D

Skeleton T-Rexby FlexiFactory

Imperial Dragon, a listing image on Cults3D

Imperial Dragonby FlexiFactory

Cute Flexi Crocodile, a listing image on Cults3D

Cute Flexi Crocodileby FlexiFactory

The four biggest sellers on that platform have 259,000, 126,000, 124,000 and 118,000 lifetime sales.

Is it worth it? 3 of 8

What they pay for is things to look at or play with

On Cults3D, 114 of the top 144 paid downloads are things to look at or play with. Dragons, miniatures, articulated toys, busts, props.
On MyMiniFactory, 99 of the 100 best-selling paid files.
22 of the 25 biggest 3D printing Patreons make characters and toys, at https://graphtreon.com/top-patreon-creators/3d-printing (opens in a new tab).

Things that do a job barely sell anywhere. MyMiniFactory's Spare Parts category holds 2 paid files against 3,294 free.

The share that is things to look at or play with

things to look at or play with everything else

Is it worth it? 4 of 8

$2,178,593

of the Kickstarter money for files that do a job went on storage boxes for board gamers and painters

The one useful thing that sells is storage for a hobby

People backed 29 Kickstarter campaigns for files that do a job and raised $2,699,882. $2,178,593 of that was storage boxes for board gamers, miniature painters and collectors.

The buyer is a hobbyist spending on their hobby. Not one of the 114 campaigns was a household repair or a replacement part.

Is it worth it? 5 of 8

£2.84

the middle price of a file on Cults3D, for something to look at or play with

What a file earns

The middle price on Cults3D is £2.84 for something to look at and £3.33 for something that does a job.
The middle Kickstarter backer pledged $58 for a bundle.
One designer selling aquarium cave models on Cults3D published his own figures: EUR 1,712 gross in about seven months, before the platform's 20% cut.

Small per file. Real per bundle, and real across a range of files.

CautionIs it worth it? 6 of 8

Do not pick from the free chart

A download chart shows what people take away for nothing.

Not one of the 48 most-downloaded models on Printables has ever been paid for. Pick from the paid best-seller lists instead.

SwipeNext: the format people have searched for in 45 of the last 56 months.

Is it worth it? 7 of 8

Formats last. Subjects expire.

From 56 months of Cults3D search rankings:

"Flexi" appears in 45 of the 56 months.
"Articulated" appears in 43.
"Barbie" appears in one.

Print-in-place, the model that comes off the plate already moving, has held its demand since 2022. A film holds it for a month.

Is it worth it? 8 of 8

Worth it, on two conditions

Worth it if your hobby is one people already spend money on, and you publish on a schedule.

Both conditions have a test. The next section runs them on your idea, or on the file you already have.

Pick your file, or check the one you have 1 of 11

Your interest is the niche

The hobby you design for already has buyers. Name the place they gather: the forum, the subreddit, the Discord, the club night.

A wargamer who bought a dungeon set last year buys the next one.

Pick your file, or check the one you have 2 of 11

Open the demand data before you open the CAD

Cults3D publishes its 50 most-searched terms every month, and 56 months are up. January 2022 to August 2026, at https://cults3d.com/en/search/trends (opens in a new tab).

The platform tells designers to use it. Look for a term that keeps getting searched and has no good paid file behind it.

CautionPick your file, or check the one you have 3 of 11

A lifetime chart is history. Check a recent window.

The Cults3D best-seller list counts every paid download a file has ever had, so a file that sold hard in 2021 still ranks in 2026.

The Printables Store shows the recent picture. Of its models published in the last twelve months, 24 have sold anything, and two jointed figures took 394 of those 424 sales.

Pick your file, or check the one you have 4 of 11

The four tests

Run your idea, or your file, through these.

The audience gathers somewhere, and comes back.
It is a character, it names a thing somebody owns, or it is storage for a named hobby.
It prints without heroics. No supports, one plate, ordinary filament.
You own the IP.

SwipeNext: 28 of the 50 most-searched terms fail test four.

CautionPick your file, or check the one you have 5 of 11

Licensed characters are the most searched and the easiest to lose

28 of the 50 most-searched terms on Cults3D in August 2026 name somebody else's property. Warhammer, Pokemon, Star Wars, Gundam.

In 2026 a toy company sued a printer manufacturer over character files its users had uploaded. The manufacturer settled and removed all related content, and the purge reportedly swept up unrelated models too.

Make your own characters. A takedown you had no part in cannot remove them.

Pick your file, or check the one you have 6 of 11

Seasonal demand is on a fixed calendar

"Halloween" enters the top 50 every August, in every one of the last five years, and never appears between December and July.
"Christmas" enters in September or October and takes rank 1 in November.

Publish ten weeks early or miss the window.

"halloween" in the monthly top 50, August to November each year. Outside those months it is not in the top 50 at all.

Pick your file, or check the one you have 7 of 11

A film window lasts days

"Barbie" appears at rank 18 in July 2023, the month of the film, and in no other month across 56.
"Fallout" entered at rank 5 the month after the series, then 12, 33, 35, 44, and gone.

The window is for people who can model, test and publish inside it.

Pick your file, or check the one you have 8 of 11

Printable, or it earns nothing

No supports where you can manage it.
Fits on one plate.
Ordinary filament. A file that needs ASA loses everyone who only prints PLA.
Modelled by you. MyMiniFactory bars AI-generated models outright, and Prusa's contests exclude them.

Pick your file, or check the one you have 9 of 11

Name it the way they search

For something to look at or play with, the format and the subject: "articulated dragon", "flexi frog".

For something that does a job, the brand and the exact model it fits: "seat bracket for Thule Urban Glide 3".

People search for the thing they want by name, usually with a number after it.

SwipeNext: already have a file? This is where it gets its verdict.

Pick your file, or check the one you have 10 of 11

Already have a file?

Run it through the four tests and the naming test.

Passes all five: publish it.
Fails naming or printability: change it.
Fails audience or IP: make something else, and keep this one as practice.

Pick your file, or check the one you have 11 of 11

You now know what to make

Either your idea passed, or the file you have did, or you know what to change.

The next section is how to get it in front of the people who pay.

Get it selling 1 of 10

Publish on every platform that pays

The top Cults3D sellers publish the same models across five to seven platforms.

Cults3D, at https://cults3d.com/en/creations/best-sellers (opens in a new tab)
MyMiniFactory
Thangs
Etsy
Patreon
The Printables Store, announced at https://blog.prusa3d.com/printables-store_87810/ (opens in a new tab)

Get it selling 2 of 10

Choose your licence on purpose

Licence	Sell prints	Resell file	Remix
CC BY	Yes	Yes	Yes
CC BY-ND	Yes	Yes	No
Any NC	No	No	Depends

CC BY means with credit. ND means unchanged copies only.

None of them can be taken back once published. Creative Commons says so at https://creativecommons.org/faq/ (opens in a new tab).

Cults3D applies its own private-use licence if you choose nothing, at https://cults3d.com/en/licenses (opens in a new tab).

Publish under an NC variant by default, and version-gate anything you may want to sell later.

Get it selling 3 of 10

The listing gets the first dozens. The channel gets the thousands.

A well-tagged listing gets you the first few dozen sales through the platform's own search.

A channel is how you get from tens to tens of thousands. Start with the listing and grow the channel alongside it.

SwipeNext: the channel the top sellers use, with the numbers.

Get it selling 4 of 10

Instagram is where the sellers are

Across the top 150 Cults3D sellers by sales, 101 declare an Instagram account and 40 declare YouTube.

Of the readable YouTube channels, the middle one has 191 subscribers. The middle Instagram account has 11,000 followers.

One designer holds 35 of the 144 best-selling paid files and 259,000 lifetime sales, with 182 YouTube subscribers.

Where the sellers are

Instagram YouTube

Get it selling 5 of 10

Start before you have an audience

Across fifteen of the biggest 3D printing Patreons, the Patreon launched before, or within days of, the channel in seven cases.

Only four built an audience first. The channel and the files grow together.

Get it selling 6 of 10

Enter the contests

Cults3D runs contests with a hashtag attached, at https://cults3d.com/en/contests (opens in a new tab). In 25 of 56 months, a contest hashtag is itself one of the 50 most-searched terms, as high as rank 8.

Buyers are searching those tags. An entry has to be new and on Cults3D only while the contest runs, so release it elsewhere after it closes.

Get it selling 7 of 10

Make your licensees your marketing

One designer requires resellers to credit "Designed by @[their handle]" on their Etsy listings, as a condition of the commercial licence.

Every licence holder then advertises the designer while selling their own prints. Sell the commercial licence and write the credit into its terms.

Get it selling 8 of 10

Release on a schedule

Two of the biggest solo designers launched their memberships in January and March 2022. Four and a half years later they sit at roughly 6,800 and 7,300 paid members.

One creator in the same top 25 reached 1,349 paying members in fourteen months, alongside 55,100 Instagram followers. Plan for the cadence; the dates are public.

SwipeNext: the three things that go wrong, before they happen to you.

CautionGet it selling 9 of 10

What goes wrong

Your model gets reuploaded elsewhere. One platform reported over 4,000 models and 2,000 creators hit by mass reuploads in a single year.
A takedown aimed at somebody else's character sweeps up your listings too. Card 13 keeps you out of its way.
You pay to sell. MyMiniFactory requires a subscription of $9.99, $24.99 or $99.99 a month before you can sell anything.

Get it selling 10 of 10

Where to next?

Two routes.

Route 1. Run our Claude file.

Open it in Claude and it asks whether you have a file or an idea, where your files are and how you want to sell. Then it walks you through the tests, the name, the platforms and the licence.

Route 2. Do it manually.

Work through the cards in order: hobby, demand data, tests, name, platforms, licence, channel.

The Claude file is in the free community: https://the3dprintingguys.co.uk/skool