Arduino ATX Lab Bench Power Supply 3D Printer Model

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The file 'Arduino ATX Lab Bench Power Supply 3D Printer Model' is (stl,pdf) file type, size is 49.5KB.

Summary

DIY Lab Power Supply Project with variable output controlled using an Arduino.

All other outputs 3.3V, 5V and 12V will be monitored by Arduino.

Plan is to use parts/modules easily and cheaply available from Aliexpress.

Case designed to fit any standard ATX power supply (Requires drilling of 4 holes in PSU)

Can be printed without supports, I have included a .3mm layer in the screw holes to create a platform to keep the print tidy - these will need to be push/drilled out after printing.

GND
3.3V
5V
12V
Variable (controlled by Arduino)

USB port wired to 5vsb connection on PSU (standby) which will allow you to charge a phone with the PSU turned off. Most PSU 5vsb are around 2.5A

Parts List

4x M3 or M4 screws and nuts

4mm Banana Terminals Size: 29.66x14.35mm

https://www.aliexpress.com/item/5-Pcs-4mm-Banana-Plugs-Female-Jack-Socket-Plug-Wire-Connector-5-Colors-L15/32832112136.html

6.3mm Spade Crimps - (these terminals are not easy to solder to without damaging plastic)

https://www.aliexpress.com/item/100pcs-Brass-Crimp-Terminal-2-8-4-8-6-3mm-Female-Spade-Connectors-with-100pcs-Insulating

3mm LEDs for 5vsb and power ok

https://www.aliexpress.com/item/100Pcs-lot-5-Colors-F3-3MM-Round-LED-Assortment-Kit-Ultra-Bright-Water-Clear-Green-Yellow/32731355560.html

Type A Female USB Port

https://www.aliexpress.com/item/10Pcs-Type-A-Female-and-A-Male-USB-4-Pin-Plug-Socket-Connector-With-Black-Plastic/32836938707.html

Epoxy Resin to mount USB port

6mm toggle switch

https://www.aliexpress.com/item/10pcs-MTS-101-2-Pin-SPST-Switch-ON-OFF-2-Position-6A-250V-AC-Mini-Electrical/32875986424.html

Arduino Nano (Clone is fine)

https://www.aliexpress.com/item/Freeshipping-Nano-3-0-controller-compatible-for-arduino-nano-CH340-USB-driver-NO-CABLE/32341832857.html

1602 i2c LCD

https://www.aliexpress.com/item/LCD1602-I2C-LCD-1602-module-Blue-screen-IIC-I2C-for-arduino-LCD1602-Adapter-plate/32651314933.html

4 x Voltage sensor/divider

https://www.aliexpress.com/item/Smart-Electronics-DC0-25V-Standard-Voltage-Sensor-Module-Test-Electronic-Bricks-for-arduino-Robot/32823612964.html

ACS712 Current Sensor

https://www.aliexpress.com/item/Freeshipping-20A-ACS712T-Current-Sensor-Module-ACS712-Module-Wholesale/2038554992.html
Will upload sketch and schematic once tested.

ATX_Bench_PSU_1.stl 184.8KB
ATX_Lab_Supply.pdf 17.0KB