Jumper Crab Robot 3D Models: STL Files & Printability

Yes: KingKong Robotics publishes 76 Jumper STL files. The audited main branch contains 41 detailed visual meshes and 35 simplified collision meshes, alongside URDF and MuJoCo assembly definitions. The files cover the body, upper shell, sensors, six limbs and the two front grippers.

No: the repository does not currently prove that all 76 files are ready for physical fabrication. We found no STEP or 3MF package, slicer profile, bill of materials, fastener schedule, print-orientation guide, tolerance specification or end-to-end physical assembly manual. Treat the STL files as official geometry resources that still need manufacturing review.

The most print-oriented independent work we found is the Jumper Replica project. It adds faceted STEP, assembly references and six pilot-fit STL/3MF components, but explicitly says that a complete physical replica has not yet been built or validated.

This inventory was checked against official commit 78966f4 on October 10, 2026. The repository can change, so use its latest tree as the source of record.

PrintWhat links to the original project rather than mirroring its files. This keeps downloads connected to the current revision, history and license context.

For broader discovery, run Jumper crab robot STL through PrintWhat's source search. A similarly named fan model is not automatically compatible with the official robot.

The community project below directly addresses gaps in the upstream robot-description meshes. It is not produced or endorsed by KingKong Robotics, and its own documentation keeps digital validation separate from physical fit.

Our review did not find a clearly compatible Jumper-specific release on Printables, MakerWorld or Thingiverse. Generic “robot crab” models can still be fun prints, but they are different designs and are not catalogued here as Jumper parts.

1. Confirm scale and units. STL does not carry a reliable unit declaration. The robot descriptions use metric values, but each exported mesh should still be measured against a known dimension before slicing.
2. Run mesh checks. Inspect watertightness, inverted normals, self-intersections, disconnected shells, minimum wall thickness and tiny features. A slicer accepting a file is not proof that it will make a usable part.
3. Recover manufacturing intent. The visual meshes show shape; they do not necessarily expose separate printable bodies, fastener interfaces, inserts, bearing fits, cable paths or clearances for the real actuator stack.
4. Prototype one repeatable module. Validate one leg or gripper chain before committing material to a whole body. Record orientation, supports, material, shrinkage and post-processing.
5. Separate display from function. A static desk model can use simplified joints and printed stand-ins. A moving robot needs verified actuators, control hardware, power, wiring and safety constraints.

Jumper is not a small articulated toy shell. The official hardware documentation describes a 22-DoF indoor crab robot with a 400 × 400 × 200 mm envelope, a 1.8 kg target weight, six walking limbs and two front grippers.

See the official hardware specification for the full sensor, compute, battery and connectivity list.

The official repository states that maintainer-owned project materials are licensed under Apache-2.0, while third-party materials remain under their own terms and generated outputs do not automatically inherit the repository license. Preserve the copyright and notice requirements, and review the exact files and revision you use.

License permission is not a printability guarantee, a safety certification or proof that every component needed to reproduce the commercial hardware is available. Link back to the license and NOTICE when sharing a derived package.