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Xiaou2:
Since Heat Rises... your Vent OUT (bottom of cabinet) should be the vent IN.

Use a fan to push the cooler lower-level air (nearest the floor), into the bottom of the Cabinet...
and use the rear fans, to Push the rising HOT air... OUT of the rear of the cabinet.

Even if you didnt have fans on the rear... the hotter air would generally rise itself out of the nearest
top/higher vent holes. That said... Fans helping to push the hot air out, does help to improve the heat
reduction.

Most Arcades do the same. A fan near the very bottom of the cabinet, that pushes cooler air into the bottom
of the cabinet... and a fan near the top of the cabinet.. to push the rising Hot air out of the top of
the cabinet.

Some cabinets only have lower fans... and just use Venting Plates near the top of the cabinet... slightly above
the monitor area.

Ond:
Handling of heat in the cabinet is just fine. Not shown in the pics just posted is the flow through vents at the rear/top of the back-box. In fact the PSU fan vents directly out of that vent. Passive/still air that's warm does indeed rise. Fan forced air however follows whatever path there is to take, like in central heating ducts and vents that are ceiling mounted. I put that vent in because I could feel a little warm air flowing out of the coin door cutout. Once the coin door goes in, the cabinet with glass fitted is more or less a duct. Those rear fans blow cool air directly into the GPU and CPU thermal blocks where its needed most. Air can then flow out the through the back-box vent AND the vent near the coin door. Everything else gets only slightly warm, amps, other power supplies etc.

I've run the cabinet for a few continuous hours monitoring temperatures where possible. PC parts are running way below the kinds of temperatures gaming PCs run at. I've over spec'd the GPU/CPU for this build to just run warm, never hot.

Maybe you should give me a little more credit for design awareness eh? That's my last lengthy reply to your design suggestions.

Xiaou2:
Im just a dude, trying to give some helpful advice.

Maybe I could have kissed your butt, and made some nice comments about your construction... and you
may have responded better?

Or Maybe you just take offense to advice, period.

Either way... The problem isnt me. Just offering some advice.

Cheers

Ond:
A quote (not mine) seems the best reply. “ Was at a training once where the facilitator said "Unsolicited advice is
criticism. Always."
Half the room audibly gasped/ objected. The other half shouted a chorus of yes/
thank you/ amen. She offered no quarter to the "just being
helpful" brigade. It was glorious.”

Anybody else can explain what this means to Xiaou2…anyone? Butt kissing is not called for. If you have ideas learn how to suggest them. Seriously, just basic respect for a fellow long term BYOACer, I might surprise you with my response.

jeremymtc:

--- Quote from: Ond on May 13, 2025, 10:24:28 pm ---Anybody else can explain what this means to Xiaou2…anyone?

--- End quote ---

"Hey Ond, I noticed that the one of the wire grilles for your fans is rotated 90 degrees relative to the other. It's a small detail, just not sure if you noticed it. Otherwise everything is looking great so far."

As opposed to "That incorrectly installed grille ruins the whole appearance of the machine. It's a very basic thing but it really calls your abilities into question."

Seriously though, cab looks to be coming along very nicely. I've only got exciter speakers for haptics and a much more basic audio system in mine - will be interested in seeing what you think about your solenoid setup. What sort of voltage are they driven by, and are they controlled by the KL25? How's the latency for feedback?

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