Thingiverse
DIY ATX Lab Bench Power Supply by sg_dev
by Thingiverse
Last crawled date: 3 years, 4 months ago
I wanted to convert an old ATX PSU into a lab bench power supply.
Since none of the designs on thingiverse fullfilled my needs I created my own design.
The features are:
3.3V, 5V, 12V, and GND rails of PSU attached to banana plugs
Integrated buck-boost converter to also support other voltages
Two status leds
One additional switch to turn PSU on/off
Parts required:
1 (old) ATX PSU
1 buck-boost converter, I used this ARCELI Buck Boost Converter (https://www.amazon.de/gp/product/B07MY399GQ - when using a different one the dimensions may differ)
8 banana plugs (4 red ones, and 4 black ones)
10 M3 nuts
10 M3 screws (I used 8 mm)
1 M3/M4 screw + nut to attach the front panel at the bottom. For this I drilled a hole in the printed part (front_plate.stl).
Screws to mount psu_cover.stl and fan grill should be already available from ATX PSU
Crimp connectors for wires (ring terminals to attach to banana plugs, ferrules for screw terminals)
P.S.: I attached fusion360/ step files in case you need to change some dimensions for your PSU you are using / want to use a different buck-boost converter / you want to improve the design etc ;)
Since none of the designs on thingiverse fullfilled my needs I created my own design.
The features are:
3.3V, 5V, 12V, and GND rails of PSU attached to banana plugs
Integrated buck-boost converter to also support other voltages
Two status leds
One additional switch to turn PSU on/off
Parts required:
1 (old) ATX PSU
1 buck-boost converter, I used this ARCELI Buck Boost Converter (https://www.amazon.de/gp/product/B07MY399GQ - when using a different one the dimensions may differ)
8 banana plugs (4 red ones, and 4 black ones)
10 M3 nuts
10 M3 screws (I used 8 mm)
1 M3/M4 screw + nut to attach the front panel at the bottom. For this I drilled a hole in the printed part (front_plate.stl).
Screws to mount psu_cover.stl and fan grill should be already available from ATX PSU
Crimp connectors for wires (ring terminals to attach to banana plugs, ferrules for screw terminals)
P.S.: I attached fusion360/ step files in case you need to change some dimensions for your PSU you are using / want to use a different buck-boost converter / you want to improve the design etc ;)
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