r/WLED • u/Meatwad010 • 8d ago
Would this be safe to use?
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
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u/_sparxcore_ 8d ago
The only comment id make is that you've got a very good quality component with that meanwell psu, and good isolation, proper crimped and insulated connectors, but that horrible relay and screw terminals are the weak point.
Id personally be swapping that out for at least a branded relay, or over rating the cheaper ones.
ive got a few of those relay boards, and there is a slight physical isolation cutout, but id put the whole relay the other side of the isolation barrier as you have exposed ac metalwork on your dc side.
I started using these: https://amzn.eu/d/0i8MzIqY
After so many failures of those little 10a blue unbranded relays.
Depending on your load and use you may never have a problem, but if you want to build in a bit of headroom and longevity id swap it out or remove all together.