Power supply using buck converter

I needed more than 1 rail but only have a one channel power supply. So i created this to give me two.
Whatever power is on the back side input is paralled off and comes out of the side. The buck converter's output comes out the front. It's utilitarian and a tight fit inside, but it works.
The only downside is looking at current draw on the power supply is now skewed because of the buck and it's combined draw with the new rail. This can be worked around with an extra multimeter though.

I used PLA with tree support.

List of external hardware:
Misc wire, sized appropriately
m2 heatset inserts (close tolerances in the corners for this. So be sure to come in perpendicular)
m2 screws to match inserts X 4
KCD1 style on off rocker switch
5.5x2.1mm Female DC Power Jack Connector X 3
0.28" LED Voltmeter Ammeter, Red and Blue Digital Multimeter Display
150k Potentiometer. You'll need to remove the one existing in yours and replace with a thru hole panel mount style. I used this
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