Neobotics Foundation Inc.
Chassis & CADNEORACER DOCS
NEORACER DOCS
These docs are public and open source.Edit on GitHub
HARDWARE / CHASSIS & CAD

THE CHASSIS AND CAD.

The NeoRacer is a 1:12 scale autonomous racing platform, and its full mechanical design is open. Every part lives in a public, version-controlled GitHub repository under a reciprocal open-hardware license, so you can read the chassis, print the 3D parts, and open the CAD to modify mounts for your own sensors.

1:12 scaleCERN-OHL-S-2.0FreeCAD · STEP · STL · DWGPublic repo
01 / THE REPOSITORY

THE HARDWARE REPOSITORY.

The whole mechanical design is tracked in Neobotics-Foundation-Inc/neoracer-hardware-files. Because it is version-controlled, you can see exactly what changed between revisions, fork it, and bring your edits back as a pull request. Two top-level folders organize everything: one for the full vehicle and one for the parts you print.

FIG. A / REPOSITORY LAYOUT
neoracer-hardware-files/full-vehicle/master.FCStdFreeCADneoracer.stepSTEPparts/*.stlSTLneoracer-v1.dwgDWG3d-printed-parts/parts.stepSTEPbattery-cap.stlSTL
The full vehicle and the printable parts each live in their own folder, with the original CAD alongside neutral and printable exports.
//WHAT IS IN EACH FOLDER
  • full-vehicle/ holds the complete assembly: a FreeCAD master, a STEP export, a set of STLs, and a V1 DWG drawing.
  • 3d-printed-parts/ holds a combined STEP of the printable parts plus a standalone battery-cap STL, so you can go straight to the for just the bits you print.
02 / THE FOUR FORMATS

THE FOUR FORMATS.

Each format does one job well. The reason the repo ships all four is that a single file cannot be both the editable source and a print-ready at the same time, so the design is exported into the format that fits each use.

FormatRoleWhat you do with it
FreeCADEditable masterOpen it to change geometry, add a mount, or re-export. This is the real source.
STEPNeutral CAD interchangeImport into almost any CAD tool without losing the solid model. Good for measuring or referencing.
STLPrintable meshDrop straight into a slicer to 3D print the part. Geometry only, no editing history.
DWG2D drawingA flat technical drawing of the V1 vehicle for dimensions and reference.
03 / TWO WAYS IN

PRINT OR MODIFY.

01

Print the parts

Slice and print, no CAD needed.
Open the combined STEP or the battery-cap STL from 3d-printed-parts/, load it into your slicer, and print a replacement or a spare. The mesh is print-ready as published.
3d-printed-parts/*.stl
02

Modify the mounts

Open the master and make it yours.
Open the FreeCAD master to move a mount, fit a different sensor, or rework the chassis. Re-export an STL when you are done and print your own revision.
full-vehicle/master · FreeCAD
04 / THE LICENSE

THE LICENSE.

The design is released under the CERN-OHL-S-2.0 license, the strongly reciprocal variant of the CERN Open Hardware License. In plain terms, you are free to study, build, modify, and redistribute the design. The reciprocal part means that if you share a modified version, you share it back under the same terms, so improvements stay open for the next student. The full license text travels with the repo.

//CLONE THE DESIGN
bash
git lfs install
git clone https://github.com/Neobotics-Foundation-Inc/neoracer-hardware-files.git
cd neoracer-hardware-files

Running git lfs install once on your machine makes sure the large CAD files are fetched in full when you clone.