Ttl
Cheap shielding
Hi, thanks for sharing!
I have read your articles and hopefully one day I'll be able to replicate your work.
Wouldn't it be possible to implement shielding cheaper than custom milling / bending with the help of 3D printed covers coated with EMI-shielding copper-based spray paint? There are several products specifically for this use and I have seem them claim about 60 dB attenuation for 50 µm coating.
Be careful with what you spray over the top of PWBs. Any coating can reduce switch isolation and introduce coupling. Especially as circuits are in close proximity.
On Tue, Nov 8, 2022, 4:58 AM Jan Hamal Dvořák @.***> wrote:
Hi, thanks for sharing!
I have read your articles and hopefully one day I'll be able to replicate your work.
Wouldn't it be possible to implement shielding cheaper than custom milling / bending with the help of 3D printed covers coated with EMI-shielding copper-based spray paint? There are several products specifically for this use and I have seem them claim about 60 dB attenuation for 50 µm coating.
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@reliable-bam: I am not sure I follow. I was talking about 3D printing covers (such as those that are usually made from bent metals and soldered on the board - over the components) and coating those. They would have to be mounted using screws instead of being soldered directly, though.