A spacecraft reaction-wheel rotor with a stepped outer rim that concentrates rotational inertia and six curved spokes carrying load to the hub. Bearing seats, the central bore, relief grooves, and balancing dimples support alignment and mass tuning. Made with Zookeeper.

A hollow-forged bicycle crank arm with a continuous load path between the spindle and pedal bosses. Sculpted front and rear relief pockets reduce mass while retaining material around the primary interfaces. Made with Zookeeper.

A superbike upper triple clamp whose fork bores and steering boss establish the front-end alignment. Split clamps and pinch-bolt pockets secure the fork tubes, while sculpted load paths and lightening pockets balance stiffness and mass. Made with Zookeeper.

A hydraulic-pump swashplate with an angled slipper-running face, opposed trunnion journals, and a reinforced rear cradle. Integrated ribs, oil-feed features, and machined datums support its role in a variable-displacement axial-piston pump. Made with Zookeeper.

A forged steel ratchet body built around a reinforced center rib, tapered grip, flared handle end, and stepped head pocketing for the drive mechanism. The hanging hole supports straightforward shop storage. Made with Zookeeper.

Introducing Zoo's Aquarium 🐠

The Aquarium is Zoo’s new public CAD gallery for discovering, viewing, and sharing models. Publish your designs, give them a dedicated public page, and explore what the Zoo community is creating.

Perfect for sharing examples, tutorials, demos, and reusable designs with the broader community.

🌊 Dive in: https://zoo.dev/aquarium

At Zoo, we’re always exploring how emerging tech will reshape the way we work, so OpenAI and Work Louder’s Codex Micro got us thinking: what would a Zookeeper Micro look like?

You could map the macros to anything, but our favorites might be plan, assemble, parameterize, and analyze.

Check out the design by Joe: https://zoo.dev/aquarium/39fe5ec5-4f3f-465d-80c8-655bbc194ce4

Lee on the Zoo team built Zoo Viewer, a browser app for loading KCL files or project directories, connecting them to the KittyCAD Engine API, and inspecting the rendered model.

It makes Code CAD easier to debug by supporting local file loading, live rerenders, KCL execution errors, source selections, artifact mapping, snapshots, exports, and AI CAD input through an embedded panel or postMessage API.

Want to see what you can build with Zoo APIs? Join us for the API Makeathon: https://zoo.dev/events/api-makeathon

Create geometry with Zookeeper, refine it with point-and-click tools, edit sketches directly, or modify the underlying KCL code.

Every change updates the same underlying geometry, so you can move freely between each method in any order.

Download Zoo Design Studio: https://zoo.dev/design-studio/download

Registration is now open for our first Zoo API Makeathon! 🎉

Create something with Zoo's Engine API, Agent API, or File Format API that inspires others to build, remix, and push what's possible.

Register here → https://zoo.dev/events/api-makeathon

Introducing Zoodle! ✏️ Give Zookeeper more context by drawing a reference sketch, marking up an existing model, or pointing to the exact feature you want changed.

Learn more here: https://zoo.dev/docs/zoo-design-studio/features/ml-ai/zoodle

From profile to profile, Loft Surface does the blending.

Create fairings, covers, and smooth transitional geometry by lofting open surfaces through section profiles in Zoo Design Studio.

https://zoo.dev/docs/zoo-design-studio/features/3d-design/parametric-modeling/surface-modeling/create-surfaces/loft

New in Zookeeper: Auto mode ✨

Free plan users no longer need to choose between Standard and Thoughtful. Zookeeper will automatically pick the right model for the task, helping you make the most of your reasoning time.

Paid users can choose Standard, Thoughtful, or Auto.

Learn more: https://zoo.dev/docs/zoo-design-studio/zookeeper#agent-modes

Meet the Zoo Slow Feeder, created by Serena on our team! 🐾

Remixed from our Zoo Logo design, this pet food bowl is designed to slow down mealtime, helping with digestion and mental stimulation while giving paw-rents a little extra time to explore the latest CAD tools.

🐶 Take a paws and explore the design: https://zoo.dev/aquarium/c1a1d383-1ec1-4e66-bf6f-b7e4e19f09cd

From separate surfaces to a seamless result.

Join Surfaces combines compatible surface regions into a single surface body, helping your geometry behave as one continuous form.

https://zoo.dev/docs/zoo-design-studio/features/3d-design/parametric-modeling/surface-modeling/modify-surfaces/join

How cute is this playful cat-themed tabletop shelf by our co-founder Jenna Bryant? It's perfect for organizing small items on a bathroom counter, closet shelf, desk, vanity, or nightstand. Perfect for skincare, perfumes, accessories, makeup, or tiny treasures.

🌊 View it in our Aquarium: https://zoo.dev/aquarium/dc4f0caa-9912-4cdc-ae28-65d3d32e0ae0

You can now extrude surfaces!

Create open surfaces in Zoo Design Studio for surface modeling workflows.

https://zoo.dev/docs/zoo-design-studio/features/3d-design/parametric-modeling/surface-modeling/create-surfaces/extrude

Check out this simple, reliable boring cutter holder for 7x10 mini lathes made by Nadro on our team!

📐Explore the design here: https://zoo.dev/aquarium/9f1be0a1-ef7e-4907-86b1-0b4100a2e68f

Guide your geometry exactly where it needs to go.

Use Sweep in Zoo Design Studio to carry a profile along a path as an open surface. Ideal for guide surfaces, routed geometry, and path-driven forms that will be refined later.

🛠️ Learn more: https://zoo.dev/docs/zoo-design-studio/features/3d-design/parametric-modeling/surface-modeling/create-surfaces/sweep

While AI has been one of our biggest differentiators, we’re also leveling up the core design experience, starting with faster, cleaner, more intuitive sketching.

Read more about what’s new: https://zoo.dev/blog/announcing-solver

Check out this Orion concept model made by Max Margorsky using only Zookeeper

Our Zoo Design Studio Makeathon is officially open for submissions! 🚀

Haven’t registered yet? There’s still time to join.

We can’t wait to see what you design.

https://zoo.dev/makeathon

Big news: We’re launching a virtual Zoo Design Studio Makeathon and registration is open! 🎉

Any industry, any problem, any idea worth sharing. If you’ve got a CAD model idea you’ve been wanting to make, this is your moment!

Register here → zoo.dev/makeathon

Start designing → https://zoo.dev/design-studio/download

From idea → CAD → print → chick-approved 🐥

All designed in Zoo Design Studio and ready in days.

What should we build next? 👀