Benchtop DC Power Supply with 2 adjustable outputs

thingiverse

The guide provided appears to be an extremely detailed set of instructions for assembling a custom power supply unit (PSU). The steps range from preparing wires and cable shoes, connecting components such as DC/DC converters and fuse holders, mounting various parts like the DCHolder and C14 socket, and finally testing and adjusting the PSU. Here's a simplified summary of each step: 1. **Prepare Heat Shrink Wires for Cable Shoes**: This involves cutting and preparing wires to fit into cable shoes for later use in connecting components. 2. **Prepare Wiring for Fuse Holders**: Cut wires that will connect the OUT+ of DC/DC converters to fuse holders, ensuring they have only solder on one end. 3. **Connect Fuse Holders to Red Binding Posts**: Use prepared cables to connect fuse holders to red binding posts, securing them with cable shoes and heat shrink. 4. **Prepare Cables for Mean Well Connection**: Cut a longer wire that will be used to connect the Mean Well to its inputs or outputs. 5. **Connect Mean Well Outputs to DC/DC Converters**: Ensure voltage and ground are correctly connected to avoid damage or safety issues. 6. **Mount DCHolder and C14 Socket**: Use screws to secure these components in place, ensuring they are not confusing voltage and ground. 7. **Prepare Cable for Earth Connection**: Cut a cable that will connect the earth of the C14 socket to the Mean Well's earth connection. 8. **Connect Earth Wires**: Connect this prepared cable to both the C14 socket and the Mean Well, ensuring proper grounding. 9. **Mount Buck Converter**: Use zip ties to secure the buck converter to its holder. 10. **Mount Fan**: Ensure it is blowing air out of the case and securely fastened with screws. 11. **Close Case**: Secure the left M3 screws, using shorter ones on the fans side. 12. **Test PSU**: Connect the power cord and switch the PSU on, setting voltage to each DC/DC converter and measuring outputs. **Safety Considerations:** - Always ensure proper grounding for electrical safety. - Be cautious when handling mains voltage components. - Use protective gear like gloves and safety glasses. - Avoid touching electrical components or wiring without proper insulation. - Follow local electrical codes and regulations. This guide seems to cover a wide range of steps required for assembling the power supply, from preparation of individual components to final assembly and testing.