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Launch Sponsor Autodesk Fusion

Pricing

Start With a Free STL. Choose What You Need.

Download a standard size free. Create an account for 10 Custom Builds, or unlock every size of one model for $9.99.

No Account

Take a part and go.

$0

Nothing to sign up for

  • Standard size of any model, free STL
  • Support-free, print-ready, oriented
  • BOM with hardware buy links
Browse the Catalog

StreamSolid

Build the size you actually need.

$0

Free account, no card

Everything in No Account, plus

  • 10 Custom Builds: each unlocks one new preset or custom size
  • Your downloads, saved, with free re-downloads and file updates
  • Suggest models on the roadmap

StreamSolid Pro

Every size, across every model.

Coming Soon

Join the waitlist for first access

Everything in StreamSolid, plus

  • Preset and custom sizes on every eligible model
  • Unlimited Custom Builds to unlock new sizes
  • Commercial license and API access
See Pro Details

Per-Model Unlock $9.99 once per model

Every preset size and unlimited Custom Builds on your chosen eligible model, for personal or internal use.

Includes free re-downloads and updates for as long as we offer that model.

Choose a Model

The commercial license is part of Pro, never sold separately.

How it works

Start Free. Unlock the Sizes You Need.

Grab the standard size of anything for free, no account. Sign up and you get 10 Custom Builds to unlock preset or custom sizes on eligible models you like. StreamSolid Pro is coming soon with unlimited sizes and a commercial license.

Start Free

The standard size is free on every model. Create a free account and you get 10 Custom Builds to unlock preset or custom sizes on eligible models.

Unlock What You Need

Unlock sizes one model at a time. A one-time unlock lets you make that model in any size you need, with free re-downloads and updates for as long as we offer that model.

StreamSolid Pro Is Coming Soon

When available, Pro will give you unlimited sizes on every model, a commercial license, and Pro-marked suggestions at the top of the roadmap.

Compare Your Options

Every plan includes a BOM with hardware buy links, support-free and oriented files, and free updates and re-downloads.

No account StreamSolid Per-Model Unlock StreamSolid Pro
Coming Soon
Standard size of every model
Custom Builds (any size of any model) — 10 free Unlimited on that model Unlimited
Custom text on personalizable models —
License Personal Personal Personal Commercial
Price $0 $0 $9.99 once per model Coming soon

* A free account includes 10 Custom Builds. The standard size of every model stays free with no account.

Fair question

"Can't I Just Find This Free Somewhere?"

Probably. For hobby prints and novelty items, free catalogs work well. When a part has to perform (carry load, mate with hardware, hold a precise dimension), a near-enough model means printing it again until it fits.

A free STL, in practice

  • Looks great in the preview. Overhangs you didn't notice until layer 80.
  • The seam lands right on the face you wanted clean.
  • Breaks on the first real load. Nobody thought about how FDM layers fail.
  • Comes in 10mm when you need 12. Someone asked in 2023. No reply.
  • "Needs M4 bolts." Which M4 bolts? How long? Good luck.
  • Someone remixed a better version. It has 4 views. You'll never find it.

Every StreamSolid model

  • Models print support-free. Load it up, hit print.
  • Oriented so the layer direction favors the surfaces you see.
  • Walls and layer direction chosen for the loads the part is designed for.
  • Pick the exact size. 12mm, 12.5mm, 1/2". It's there.
  • Every bolt and bearing listed with a buy link. No guessing.
  • When we improve a file, you can grab the update, free.

A single failed print and an evening of troubleshooting adds up fast. One good file pays for itself.

Why sizes, not scaling

"Why Can't I Just Scale One File?"

Scaling multiplies every dimension at once, including the ones that must not change. On a functional part, that quietly breaks the fit.

Interfaces Are Fixed

An M4 bolt hole, a bearing seat, a threaded insert, or a snap that mates with a real part has to stay its exact size. Scale the whole model and the hole no longer fits the hardware.

Clearances Stop Working

A 0.2 mm slip-fit gap becomes 0.3 mm at 1.5x. A press-fit turns loose, or a clearance closes into interference. The tolerance was tuned for one size, not a multiplier.

Walls and Strength Shift

Scaling up wastes material and print time; scaling down can drop a wall below a nozzle width or under the load it has to carry. Thickness should follow the job, not the whole part.

Print Features Are Tuned

Chamfers, reliefs, and print-in-place gaps are set for how FDM actually lays down plastic. A blanket scale throws those off, and you feel it on the plate.

So every StreamSolid size is regenerated from the parametric CAD model: the dimensions that should change do, and the interfaces that should not stay put. Pick the real size you need instead of scaling and hoping.

Frequently Asked Questions

What's Free Without an Account?

The standard size of every model is free to download as STL, on the product page, with no account. Browsing the catalog is free too.

What Do I Get With a Free Account?

10 Custom Builds the moment you create an account, no card required. Each new size you unlock uses one Custom Build, whether you choose an existing preset or generate a custom size. Re-downloading an unlocked size uses no additional builds. The standard size stays free with no account.

What Is a Per-Model Unlock?

A one-time purchase that unlocks every size of a single model. You buy it from that model's page, where its price is shown. No subscription, and re-downloads and updates are free for as long as we offer that model.

What Does Pro Include?

Pro is coming soon. It will include unlimited sizes on every model and a commercial license while subscribed. Roadmap suggestions from a Pro account are marked Pro and listed first.

How Much Is Pro?

Pro pricing is announced at launch. Create a free account and you will be first to know when it opens.

Will the Price Go Up?

Prices for new members rise as the catalog grows. Whatever price you sign up at is the price it stays for as long as you're subscribed. Creating a free account puts you first in line for launch.

Do the Perks Grow the Longer I Stay?

Yes. Day one you get commercial rights, unlimited sizes on every model, your license PDF, and Pro-marked suggestions at the top of the roadmap. Whatever price you sign up at is the price it stays for as long as you're subscribed. Prices will increase as the catalog grows.

Can I Just Buy the Printed Part?

Yes. Choose a model and a size, and a professional print farm in the USA prints and ships it to you. You see the price for that exact part before you order. It needs no account and no unlock, because you are buying the physical part rather than the file.

Do I Get the CAD Source Files?

No. Every plan delivers print-ready STL. Custom Size is how you get an exact size without touching CAD: set the dimensions you need and the model is built to order.

Can I Use These Files Commercially?

Pro is coming soon. A Pro subscription will include a commercial license that covers commercial, bulk, and wholesale use of your Pro downloads. Free and one-time-unlock downloads are for personal or internal use (not for selling printed parts), and the files themselves may not be shared or resold.

Ready to Start Printing?

Browse our catalog of professional-grade parametric models. Every one is a functional part built for real use.

Browse the Catalog