China has been doing this sort of recycling for literally decades, at a massive scale.
Have any more information or sources? Would like to learn more
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I'll buy your electronics to feed our robot
21–30 of 44 posts
Re: I'll buy your electronics to feed our robot
#22Earlier quoted context omitted.
I can't see a problem, as long as the chips are not fraudulently resold. Beyond not using a resource in the first place, reuse is the gold standard in sustainability. As an engineer, I wouldn't use second hand components for prototyping. When prototyping you need to eliminate as much uncertainty as possible. I'd consider using second hand components in production, provided there is a cost advantage, supply is reliabl…
>I can't see a problem, as long as the chips are not fraudulently resold. In general, most components are only rated for 2 to 4 re-flow heating cycles before internal damage occurs. On some components the initial re-flow cycle brings the component into the rated tolerance, and for others the PCB forms a bimorph cantilever that physically fatigues the chip contacts/leads. Production yields are only part of the Infant…
That's a fair point: that heating due to repeated (de)soldering can cause degradation.
Re: I'll buy your electronics to feed our robot
#23Re: I'll buy your electronics to feed our robot
#24thank you for all the support so far! We've got a lot of inbound and started processing it. there are a lot of interesting questions on this thread and i'll address them soon.
Re: I'll buy your electronics to feed our robot
#25China has been doing this sort of recycling for literally decades, at a massive scale.
that's true, but we've only seen either highly specialized hardware that forces you to lock in or a methods (tumbling / rotary shredding) that destroy the components. we want to leverage general purpose policies more to make the cost of setting up "hardware reuse" nodes less and thus the whole supply chain more distributed and robust.
Re: I'll buy your electronics to feed our robot
#26This is really cool. In the demo, how do they just yank the chip off the board? I'd have assumed it would be somehow soldered on or something.
Looks like a hot-air rework setup. I've swapped chips by hand that way, once the solder is molten they'll fall right off the board. The hard part is lifting them away without accidentally dislodging anything else.
exactly, + we preheat the board before to let the trapped air out. would love to hear more about your experience doing this by hand and where you see automations for this applicable
Re: I'll buy your electronics to feed our robot
#27Awesome concept !
thanks! do you have any ICs to send over?:)
Re: I'll buy your electronics to feed our robot
#28Re: I'll buy your electronics to feed our robot
#29This is really cool. In the demo, how do they just yank the chip off the board? I'd have assumed it would be somehow soldered on or something.
At 0:16 it looks like they're heating the board from below?
thats right! thats to let the trapped air out and preheat before a manipulator heats the target up further and unsolders it.
Re: I'll buy your electronics to feed our robot
#30We’re building a robotics system that recovers reusable electronic components from retired hardware. To run experiments we’re looking to buy electronics that are *retired or obsolete but still contain valuable components*. Examples: * servers, networking gear, routers, switches * laptops / workstations * telecom / industrial / embedded boards * lab equipment electronics * obsolete or end-of-life hardware with populat…
This is very very cool :) And is _way_ better than when I'm forced to do this by hand, I'll say that much haha
thanks! how often do you have to do it by hand and how long does it take it?