UK supermarket chain Tesco has introduced laser-etched avocados and switched to cardboard containers for two of its most popular avocado lines, in a bid to reduce plastic waste. The retailer has ...
Many hobbyists and hackerspaces have the $500 Chinese 40W lasercutters which most of us know are about as successful at etching metals as a featherduster is at drilling. [Frankie] and [Bryan] have ...
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