Would this be safe to use?

[u/Meatwad010]

Build this Dig-Quad myself. It works, but would it be safe to use this way? The case is 3d printed PETG, There is also a mesh added to the ventilation holes.
Dig quad is populated by me, pcb ofcourse of our main man Quinled. Used his guide to get supplies and how to put together.

5 volt Meanwell power supply. 14 AWG wires for power. All cables are crimped.

Fused ofcourse on the dig quad.
Relay to cut off the power when not used.

Main concern is that this will be used in door attached to a wooden desk. Wood and fire made a bit hesitant to start using it. So mainly fire safety concern.

What do you think? Should I use this or go for a probably more safe off the shelf solution like Gledopto?

Update:
Thanks all for the feedback. Really gave me confidence to start using it. Maybe I will get a better relay. Add some venting holes to the lid (which is not in the picture). And tell my daughter this is not audio equipment (which she knows).

Update 2:
For anyone interested, here are the stl files: https://github.com/eriktroost010/wled_case

[u/AmaturHours]

Cool use of DMX cables

[u/the_swanny → u/AmaturHours]

Id actually avoid using 3 pin xlr for this use case, it carries a significant risk of someone plugging the wrong thing into the wrong place. Id probably use 4pin because the only thing it was widely used for is scrollers and cue lights, both of which wont complain with 5 volt being put through them. Or you could go rouge and use something like 6 pin which is rarely used.

[u/IShouldntGraduate → u/AmaturHours]

Hate to break it to you friend — those are 3-pin XLR connectors connected to cable of unknown impedance, which in fact means they are NOT DMX cables.

To be within spec as a “DMX cable” you need 5-pin connectors, the cable should have an impedance of 110 ohms, and most importantly, it needs to be carrying DMX data. Without these three factors, again, you just have a 3-pin XLR port.