Small Bench Top Power Supply

Small benchtop 3a power supply able to be printed (barely) on a monoprice select mini.

Bill of Materials:
B10K potentiometer
xl2001-5v usb buck converter
dns-vc288 voltmeter / anmeter led display
3a LM2596 buck converter
Male Power Socket with Fuse and Switch 10A 250V 3 Pin IEC320
3a fast blow fuse
spade connectors for power
wire
3mm cap head screws (8) and 3mm hex nuts (6)
clone dell pa9 laptop power supply (outer dimensions of plastic case 50x30x126mm)

High Level Instructions:
I'm not going to provide a full schematic, anyone doing this should have a good working knowledge of electricity, if you don't enlist the help of someone who does.

The 3a buck converter needs to have the onboard pot desoldered and replaced with wires attached to the b10k pot. Only two leads are required the third one on the board isn't connected. Make sure you wire it up so that turning the pot clockwise increases the voltage. The buck converter hangs upside down on the top of the case.