3D Printed Adjustable Power Supply Case (XL4015)

This is a compact and functional 3D printable case designed for building an adjustable DC power supply using XL4015 or LM2596 modules.

The enclosure is carefully designed to provide a clean and organized layout, making your DIY power supply look professional and easy to use.

🔧 Key Features:

• Adjustable output voltage: 0–24V

• Adjustable output current: up to 5A (with XL4015)

• Built-in digital voltmeter support

• Clean and compact enclosure design

• Easy assembly and user-friendly layout

📏 Dimensions:
85 × 46 × 44 mm
Compact, portable, and perfect for bench use.

🎛 Smart Knob Design:
This design includes a custom knob system that connects directly to the module’s original potentiometer.
👉 No need to replace or modify the potentiometer – simple and efficient!

⚡ Compatibility:

• XL4015 module (recommended – voltage & current control up to 5A)

🖨 3D Printing:

• Minimal supports required

• Easy to print

• Works well with PLA / PETG

• Clean fit for all components

🎥 Assembly Video:
You can watch the full step-by-step assembly process on YouTube:

💡 Components used:

• XL4015 DC-DC Step-down module (Voltage & Current control, up to 5A) 

  https://s.click.aliexpress.com/e/_c3N9l3vF 

  https://s.click.aliexpress.com/e/_c3rxCjBP 

  https://s.click.aliexpress.com/e/_c3s0sIR3 

  
  Digital voltmeter 

  https://s.click.aliexpress.com/e/_c4XNiuE1 

  https://s.click.aliexpress.com/e/_c4l1qzAH

   

• DC power connector 2.1x5.5

  https://s.click.aliexpress.com/e/_c3Efd6AZ 

   

• Rocker switch

  https://s.click.aliexpress.com/e/_c3Pmjyb7 

  https://s.click.aliexpress.com/e/_c2z9uwBj

   

• Banana terminals

  https://s.click.aliexpress.com/e/_c34d1pwd 

  https://s.click.aliexpress.com/e/_c4cDhULL
   

⚡ This design is perfect for DIY electronics enthusiasts who want a compact, powerful, and professional-looking adjustable power supply.

👍 If you like this design, feel free to like, share, and follow for more projects!