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X****Liu
Mounting PCBs in diecast aluminum boxes?
814 1 Oct 15.2019, 17:09:16

Aluminum projects boxes like this look nice and sturdy for my project:

But I'm unsure how to mount a PCBA inside. My google image searching shows a lot of empty boxes like above, hardly any example projects, and none where they've highlighted the assembly. The first thing that comes to mind is to drill and tap the bottom below the mounting holes in my board, and then insert standoffs and fasten the board into those. The walls of the box are typically 2mm thick, so pretty much all standoffs will have threads protrude from the bottom, which I don't want. I'd like the sides basically smooth so it will lay flat and avoid marring other surfaces.
Is there a better way to use these boxes? Would love to see some examples if people have them!

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A****min

Oct 21.2019, 17:17:29

Why not use countersink holes/screws with dual internal treads standoffs, or mount your standoffs backwards, i.e. flat side to the wall with countersink screws and threaded side up to the PCB. Just mount your PCB  to the standoffs using nuts.

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