I think I could save money on a PC case if I got a large wooden box with a sliding lid and just screw the motherboard to it and carve areas for the PSU and storage. I suppose this could work, but I would need a big wooden case, like a meter tall and 50cm wide, but really thick so I can carve a few rectangles to mount the HDDs.
Could I have a PC case made out of a wooden box?
Sure, you absolutely can, just keep airflow in mind and remember that wood is flammable.
I could get fire-resistant wood, like hardwood a few cm thick, but I would have a drill and carve holes for the fans and engineer a solution to keep the PSU cool.
Who needs a case?
I know PCB can flex a little and not be an issue (especially large PCB), but still gives me the willies.
I am willing to bet 100% of my life savings that this photo was taken in Russia. At least the air cooling is on the ball.
The motherboard is supposed to be grounded.
Note any mounting screw holes with metal around them - they should all be grounded by connecting them to the PSU's outer case.
If you fail to do so you might experience random instability.
Using a metal motherboard tray inside the box would make this much easier, as well as helping with stand-off clearance (even though wood doesn't conduct I wouldn't count on it for isolation because it might get moist on humid days)
>The motherboard is supposed to be grounded.
Don't make shit up. You don't even know what grounding is.
the metal isnt connected to anything. its just there so the screw doesnt scrape off the pcb
>Using a metal motherboard tray inside the box
If that metal isn't connected to anything, what makes you think the metal tray is grounded?
What makes you think the 24v power plugs have no grounds on them?
Wood cases have been done before, they're not common because buidling a case with adequate air flow would be expensive without a mesh material and that would look like ass against a wood grain. If a wood worker put in a low of hours to make it big enough, route cables, and still have a reasonable "grill" for air flow, I bet it would be quieter because the wood would absorb a lot of the fan noise.