Kingroon KP3S base that can hold PSU.
2 small pieces!! They can be printed with Kingroon KP3S.
The structure is very simple and sturdy.

You only need seven m3x30mm bolts.
Any other parts can be resued from the original ones.

I recommend you print with at least 4 layer, 40% infill.
Support is not needed.

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Backside is sealed completely for safety.
Electronic hazard is your responsibility.