FORRC Robot Car
A basic low-cost 3D-printable remote controlled car designed for learning how small cars are built from scratch.
- Wheeled
- Open source
- 3D printable
Suggested by Robotheca, created by @codingwithsomeguy (opens in a new tab), from github.com/codingwithsomeguy/forrc (opens in a new tab). Pinned to commit f4aa2e8 (opens in a new tab).
- Hardware license
- CERN-OHL-S-2.0 (opens in a new tab)
- Software license
- CERN-OHL-S-2.0 (opens in a new tab)
- Commercial use
- Allowed
Photo and 3D model
3D preview converted from github.com/codingwithsomeguy/forrc at f4aa2e8, under CERN-OHL-S-2.0. View the original files from GitHub (701 KB) (opens in a new tab)
- Weight
- 30 g
What it can do
Written by Robotheca from the project's documents.
- A basic remote controlled car designed as a low cost 3D printable robot for learning about small car construction.
- The unmodified base car is geared down for relatively low speed use.
- Designs are available in FreeCAD and as exported STL files.
Bill of materials
29 parts29 of 29 parts shown
≈ € amounts use the ECB reference rate of 15 Oct 2026, for comparison only.
3 of 29 parts have no price in the source, so there is no parts total. Read from bom/exported/rccar-bom-v1.csv at the pinned commit.
Build guide
The guide appears here as you scroll.
Guide by @codingwithsomeguy (README.md), under CERN-OHL-S-2.0.
Wiring and electronics
Notes written by Robotheca from the project's documents.
Main parts
- ESP32-CAM board with CH340C USB card, listed in the parts list.
- L293D motor controller for driving the geared DC N20 motor.
- Geared DC N20 motor for drive.
- Steering servo with a pack of servo horns.
- MT3608 boost DCDC converter.
- Battery holder with leads, using AA batteries.
- Shift register, push buttons, LEDs and resistors listed in the parts list.
Connections
- The README does not describe how the parts are connected; wiring details are not given in the provided documents.
Cables and connectors
From the parts list.
- jumpers × 20
- F/M jumper cables long × 10
- F/M jumper cables short × 10