Samsung remote cap for directional IR beam

The remote IR beam is not directional, if you have two samsung TVs (the frame, neo qled, ...) close to each other
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updated January 30, 2024

Description

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If you use direclty the STL models instead of the prusa slicer projects, be sure to flip them over before printing, since the flat side is on the top.

For a black remote, just print the full cap.

For a white remote, you need to print the cap core black (black is blocking the IR beam), and print the cap cover white (for aesthetic purpose). Both should have a snug fit, the model has a 0.06mm gap which seems good.

If you print a full cap with white filament, it defeats the purpose since it seems it's transparent to IR, and seems to make the issue worse.

Explanation:

I have in my living room one The Frame TV (TQ75LS03B) (as a TV), and one TV Neo QLed (QE55QN700B) as a computer screen.

They have an identical TV Remote, which seems to use a combination of IR leds and bluetooth: from my experience, the on/off signal is IR in priority (it's instantaneous), and then bluetooth (slower, but if I block the IR signals I can indeed still power on/off, it's just slow)

My issue is the following: since the two screens are in the same room, whenever I switch on/off one TV with its remote, it actually switches the other TV.

The conflicts is only with the IR signal, bluetooth is correctly controlling the respective TVs for the remote.

And I'd rather use the IR signal, since it's instantaneous.

So we need to make the IR beam more directional, with a simple 3D printed fixture that just clips on the end of the remote.

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