Harvesting Copper from Microwave Ovens

Obsolete appliances were once a gold mine of parts, free for the taking with a few snips of your diagonal cutters. Times have changed, though, and most devices yield only a paltry supply of parts, so much so that only by harvesting raw materials can you get much value out of them. And so we have this example of reclaiming copper from used microwave ovens.

The primary source of copper in most microwaves is the transformer, which we usually see re-tasked for everything from spot welders to material handling electromagnets. But the transformer is not the only source of the …read more

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A Functioning 3D Printer For 10€

There was a time when crowdfunding websites were full of 3D printers at impossibly low prices. You knew that it would turn out to be either blatant vaporware or its delivery date would slip into the 2020s, but still there seemed always to be an eager queue ready to sign up. Even though there were promised models for under $200, $150, and then $100, there had to be a lower limit to the prices they were prepared to claim for their products. A $10 printer on Kickstarter for example would have been just a step too far.

There is a …read more

Continue reading A Functioning 3D Printer For 10€

A Functioning 3D Printer For 10€

There was a time when crowdfunding websites were full of 3D printers at impossibly low prices. You knew that it would turn out to be either blatant vaporware or its delivery date would slip into the 2020s, but still there seemed always to be an eager queue ready to sign up. Even though there were promised models for under $200, $150, and then $100, there had to be a lower limit to the prices they were prepared to claim for their products. A $10 printer on Kickstarter for example would have been just a step too far.

There is a …read more

Continue reading A Functioning 3D Printer For 10€

Prison Inmates Built PCs from e-Waste and Connected Online Using Prison Network

Can you imagine your world without the Internet?

I know it’s hard to imagine your life without the Internet, and the same was the case of two Ohio prisoners who built personal computers from parts from e-waste, hid them in the ceiling, and connected t… Continue reading Prison Inmates Built PCs from e-Waste and Connected Online Using Prison Network