The short answer: Etsy gets the most traffic but is generic. Cults3D and MyMiniFactory are STL-only — buyers download files and print themselves. Shapeways and Treatstock print for you on industrial equipment. DDDIMO is curator-led for makers who print themselves and want lower commissions on physical products. There is no single best platform — there's a best one for what you're selling and how.
The six options at a glance
| Platform | Model | Commission | Best for |
|---|---|---|---|
| Etsy | Marketplace, you fulfill | ~9% + listing fees | Wide reach, decorative items |
| Cults3D | STL marketplace | 20% on file sales | Designers selling files only |
| MyMiniFactory | STL marketplace + tribes | ~15% on files | Tabletop / miniatures niche |
| Shapeways | They print, you design | Markup on their fee | Designers without printers |
| Your own Shopify | You handle everything | Shopify fee + payment processing | Established brands |
| DDDIMO | Marketplace, you fulfill | 6–12% (tier-based) | Makers who print themselves |
Etsy — biggest reach, biggest noise
Etsy has hundreds of millions of buyers. If you're selling 3D-printed home decor — coasters, planters, lamps, organizers — Etsy will show your products to people who didn't know they wanted them. That's a real advantage.
The downside: you're competing with everyone. The marketplace isn't 3D-specialized, so 3D-printed goods sit alongside resin-cast, laser-cut, and traditionally-manufactured items. Algorithm visibility is hard, ad spend creeps up, and the platform's brand sits on top of yours. Etsy is a great place to start; it's a hard place to scale a 3D-specific brand.
Cults3D and MyMiniFactory — STL marketplaces
Cults3D and MyMiniFactory don't ship physical products. They sell files. A buyer downloads an STL or 3MF, prints it on their own machine. The seller never touches a printer; the buyer absorbs the print cost and effort.
This is a different business than selling printed objects. You're selling a digital good — a design — not a physical product. Margins per file are tiny (often a few euros), but a popular file can sell thousands of times with no incremental work. It scales like software.
MyMiniFactory has a stronger niche pull in the tabletop miniatures community, where "tribes" (Patreon-like subscriptions) drive recurring revenue. Cults3D is broader and more generalist. If your products are flat-shippable as files, both are worth listing on.
Shapeways — they print, you don't have to
Shapeways operates at the opposite end. You upload a design; they print it on industrial-grade equipment (SLS, MJF, metal sintering); they ship it to the buyer; they pay you the markup over their print cost.
This is a great fit for designers without printers, or designers who need materials beyond what hobby printers can do — nylon, steel, full-color sandstone. The platform handles all the manufacturing, all the shipping, all the customer service. You design and earn.
Trade-off: limited control. Shapeways' material catalog and pricing are fixed. You can't undercut their prices, can't pick your own filament brand, can't customize fulfillment. Margins are slim because Shapeways takes the production cost. If volume is high enough this works; for niche or low-volume products, the math gets tight.
Your own Shopify (or WooCommerce) store
The full-control option. You build the storefront, drive the traffic, take payments, fulfill orders, handle returns. The platform fee is small (~2.9% on payment processing plus Shopify's monthly subscription) but you carry everything else.
This works once you have a brand audience that searches for you directly. For pre-launch creators, it's a chicken-and-egg problem: no traffic until you have brand recognition, no brand recognition until you have traffic. Most successful Shopify 3D printers started elsewhere (Etsy, social media) and migrated to Shopify after building a following.
DDDIMO — marketplace built for 3D specifically
Disclosure: this is our marketplace. DDDIMO sits in the same lane as Etsy (you print, we connect you to buyers, we don't touch the manufacturing) but is 3D-exclusive. Every listing is a 3D-printed product. Every buyer is there because they care about 3D. The algorithm doesn't have to disambiguate you from resin-cast jewelry or laser-cut art.
The pricing model is tier-based: free to join with 12% product commission and 8% on event tickets, or paid tiers (€29/mo at 8% / 7%, €49/mo at 6% / 5%) that pay for themselves once you're doing meaningful volume. Founding seller rates lock for the first 1,000 members.
It's young — pre-launch as of 2026. The reach isn't Etsy's yet. But for sellers whose product is unambiguously 3D, the lower commission and the focused audience compound over time.
How to choose
- You print yourself, products are decorative → Etsy first, DDDIMO as you scale
- You print yourself, products are 3D-specific (functional, niche) → DDDIMO + your own brand presence
- You sell files, not physical products → Cults3D and/or MyMiniFactory
- You don't want to print → Shapeways
- You have an existing audience → Shopify, plus marketplace presence for discovery
DDDIMO is the world's first marketplace built exclusively for 3D. Get early access.
