Answers for your next project.

After purchase, download the STL files directly from your Cults3D account. No physical parts are shipped.

Use the standard print settings for your printer and follow the instructions on the filament and for your printer. You can leave support generation set to automatic. I generally use a layer height of 0.2mm and a 0.4mm nozzle. Special print settings, if needed, are described in the respective instructions.

What you need

• An Arduino (e. g. Arduino Uno or Nano)
• A USB cable that fits your Arduino
• A computer (Windows, macOS or Linux)
• The Arduino IDE (free software)
• The specific code for your ride (provided on the page of the respective ride)

Step 1: Download and install the Arduino IDE

1. Visit the official Arduino website: https://www.arduino.cc/en/software
2. Download the appropriate version for your operating system.
3. Install the software by following the on-screen instructions.

Step 2: Connect the Arduino to the computer

1. Connect your Arduino to the computer using the USB cable.
2. The green LED on the Arduino should light up – this indicates that it is being powered.

Step 3: Set up the Arduino IDE

1. Start the Arduino IDE.
2. Go to the menu Tools > Board and select your Arduino model (e. g. "Arduino Uno").
3. Go to Tools > Port and select the port to which your Arduino is connected (e. g. "COM3" or "/dev/ttyUSB0").

Step 4: Open code

1. Click on File > Open in the Arduino IDE.
2. Navigate to the location where you saved the code for your ride and open the corresponding file (with the extension .ino).

Step 5: Verify and upload code

1. Click on the checkmark icon (✔️) in the top left to verify the code.
2. If no errors are displayed, click on the right arrow (➡️) to upload the code to the Arduino.
3. After uploading, your ride should work as intended.

Step 6: Test function

After a successful upload, you can test whether everything works as desired. Check the provided wiring diagrams against your cabling as well.

Additional tips

• If you are unsure which Arduino model you have, you can usually find the model designation printed directly on the board.
• If you encounter issues when uploading the code, check whether the correct port and correct board are selected in the Arduino IDE.
• On https://www.arduino.cc/en/Tutorial/HomePage you will find further helpful tutorials and examples.

Video tutorial

For a visual guide, you can watch the following video:

The models are optimised for standard FDM 3D printers. Model-specific settings are listed directly on each model page.

All models are designed for H0 scale at 1:87.