Simhub - Electrical Component Box - DIY Belt tensionner

This is a set of 3D printable enclosures designed for the DIY Belt Tensioner project from SimHub. The component box helps organize and protect the electronics, ensuring a clean and secure setup for your belt tensioner system.

🔧 Features:

✅ Three different versions to accommodate various power supplies.
✅ Designed for easy assembly and accessibility to components.
✅ Hinged lid for convenient access to internal components.
✅ Optimized for 3D printing with minimal support requirements.

⚡ Supported Power Supplies:

This model includes enclosures for the following power supplies:

• LE-350-48 – STEPPERONLINE

• S-350-48 – STEPPERONLINE

• LRS-350-48 – MEAN WELL

The file names correlate to the different power supplies, so make sure to choose the version that matches your selected power supply.

🛠 Parts List:

Required Components:

• GX16 Connector (6x 4P Male-Female Connector) – AliExpress

• Heat Inserts (Length 3mm, M3 OD 4.2mm, 50pcs) – AliExpress

• 2 or 6 M3 Bolts (Minimum Length: 10mm)

• 2x M3 Bolts (Length: 5 or 6mm)

• Oiyagai IEC320 C14 Power Connector – Amazon NL

• Power Plug – Amazon NL

• YBBOTT Step Down DC/DC Converter (48V to 12V) – Amazon DE

• 4010 12V Cooling Fan – AliExpress

Optional Components:

• Dupont Line 10cm Female-Female – AliExpress

• Nano Expansion Board – AliExpress

• PWM 12V DC Motor Speed Controller Module DC-DC – AliExpress

🔗 Additional Remix:

This project also includes a remixed handle design to improve functionality. You can find the handle model here:
Creality K1 Door Handle Remix

🔹 While ordering, you can also add the stepper motor cooling project by @c0d3c_435615:
SimHub Harness Mods

🖨 Printing Recommendations:

• Material: PLA / PETG (for better heat resistance)

• Layer Height: 0.2mm

• Infill: 20% or higher for durability

• Supports: Minimal or none, depending on your printer's capabilities

• Minimum Print Bed Requirements: 247 mm x 134 mm x 152 mm

• You can always rotate the parts 45° to make them fit better on your printer’s bed surface.

• Name plate: Add layer pause / color change 

I have tried to accommodate smaller print bed sizes, but please check your printer's build volume before printing.

💬 Need Help?

If you encounter any issues or have questions, feel free to contact me on the SimHub Discord server! If you print and use this model, I’d love to see your setup—share your makes! 🚀

💬 Update:

2025/12/25 : Added a name plate, Bolt holes and GX16 labels.

The GX16 labels mounts can be downloaded here 

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⚠ Disclaimer

Electrical Component Box – DIY Belt Tensioner

Data Sheet and Wiring Diagram Use

The information provided in this document—including the wiring diagram, data sheet references, and associated component details—is intended for personal, non-commercial use only. While every effort has been made to ensure accuracy, it is the responsibility of the user to verify all connections, specifications, and the compatibility of components with their intended application.

Users must consult the official manufacturer data sheets for each component to confirm electrical and mechanical specifications, including but not limited to:

• Voltage and current ratings

• Pin configurations

• Communication protocols

• Safe operating conditions

Improper wiring, incorrect power supply selection, or misuse of components may result in equipment damage, system malfunction, or safety hazards.

This documentation is provided "as is" without warranty of any kind. The creator of this material assume no responsibility for any direct or indirect damages resulting from its use.

⚠ Always double-check

all connections, follow proper electrical safety procedures, and consult the relevant data sheets before powering your system.