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I love this unit. It's very clearly a low volume hand-made electronic product for a very niche market. It shows the quality results that can be achieved when somebody inventive uses a 3D printer.
The circuitry also has a very distinct hand-rolled feel to it. I'm not going to go too deep into it, because it would be unethical to reverse engineer such a specialist product. And a huge amount of the work is done in the software locked in the microcontrollers anyway.
Subsequent to the video I stripped the battery holders that had been damaged, neutralised the alkali damage with vinegar, rinsed them off with isopropanol, cleaned the contacts and then reassembled with fresh batteries and a note to the owner to remove batteries when in storage and use a complete fresh set for all major events to ensure reliability.
Here's the manufacturers website if you need an infrared beam race timing system:-
www.timeitperfect.co.uk
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- www.bigclive.com/coffee.htm
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#ElectronicsCreators