AC powered DC power supply - (0-34V / 0-5A / 100 watt capable)

This is a compact DC power supply that is powered with AC power. Wanted a lower power and adjustable compact supply to use on my desktop with spring terminals to quickly use with bare wire.  No more searching for wall warts of the right voltage or building voltage dividers.  Just dial in voltage and go. Cost around $40 USD to build.

Updated recently to use a higher voltage output board as the previous board output 12V but after passing through the power supply module, dropped down to 11.6V. This new module outputs 35.2V to the supply module so you can reach 34.1V out if needed.

AC input power: 85-265V(50/60Hz)

DC output power: 0-34V(34V limited by AC-DC board and power supply drop) / 0-(4-5)A(power supply is limited to 4-5A) - 100 watt power output total capable

I used Output 1 and adjusted the output power knob (brass screw in a blue cube) to adjust the output voltage. I maxed mine out which resulted in 35.2V out.

Adjust this before final assembly as reaching this adjustment screw with fan in place with a screw driver is not easily done.

BoM

AC to DC power supply module
DP50V5A DC Voltage/Current Programmable Power Supply
80mmx80mmx10mm 12V fan
(2) Jack spring terminals
Banana plug terminal
Rocker Switch (19mm x 12.4mm hole)
(4) 8mm M3 screw - spring clip mount
(2) 16mm M3 screw - side mount
AC power cord(scavenge from old appliance or buy off Aliexpress or the like)
Rubber feet
100Ohm Resistor - I used four ¼ watt 100 ohm resistors, two pairs in series for a 50ohm 1 watt equivalent resistor to slow the fan down (verify voltage at fan).
22AWG project wire

Printing: 3mf files below also contain support blocker for main body. PETG and default print settings are fine.

Power cord is just sourced from old hardware.  Zip ties in place.

Pics are of older design without dual side exhaust vents.

Pillar in middle is modular and is different from the design here.  I broke mine off and it was a happy accident since I figured out a better design to make the middle post modular to install after installing and wiring stuff up, gives you more room to work.  Also moved the mounting point back 10mm or so so the fan hits the front heat sink more directly.

Overview of design and build: