Upcycled ATX Lab Bench Power Supply

I wanted to enclose everything into a single unit, so I made this. This project provides a reliable and adjustable power source without breaking the bank. You can complete the entire project for as little as $50! Converting an ATX PSU allows you to create multiple voltage outputs, including a variable 0.5-30V output and stable 3.3V, 5V, and 12V rails. Additionally, there are USB outputs for devices requiring 5V power. This conversion not only recycles an older PSU but also offers a cost-effective alternative to commercial lab power supplies.

Materials List

Below is a list of parts needed, including quantities and links for purchase.

• 3D Printable frame - 1 set (Custom designed to house the PSU and additional components)
• 19mm Power Button - 1x - I used the 9-30V(12V24V) Fixed Self Locking ones.
• Dual USB Socket - 1x
• Glass Tube Fuse Kit - 1 set
• Fuse Holders - 4x
• Buck Boost Converter Module - 1x
• 50W Wirewound Aluminum Shell Resistor 8 Ω - 1x
• Banana Plug Sockets (Red and Black) - 5x each color
• M3 Brass Inserts - 8x - I used the M3*4*4.2 ones.
• Screw Terminal Block - 1x (Get one that has a higher Amp rating than the max of your PSU)
• Ferrule Sleeves - 1 set
• Insulated Connectors
• M3 Screws
• Heat Shrink Tubings
• Any ATX PSU (Non-modular)

For a full step-by-step guide on how to make this project, please visit my detailed Instructables post. There, you'll find comprehensive instructions, tips, and detailed explanations to help you successfully complete your own lab power supply. Whether you're a seasoned maker or a beginner, the guide will walk you through each phase, from disassembling the PSU to wiring and final assembly. With clear visuals and thorough explanations, you'll have all the information you need to create a functional and reliable lab power supply.

If you want an even more satisfying electronics project go check out my Home Automation: Smart Relay Control for Your 3D Printer Enclosure

Disclaimer

Please note that this project involves working with electrical components and power supplies, which can be dangerous if not handled properly. Ensure you follow all safety precautions and double-check your work. I am not responsible for any damage, injury, or loss that may occur as a result of following this guide. Proceed at your own risk and always prioritize safety.