Step 3: Harvesting
*** Do not keep the Iron on the solder for a long time, because you can damage the part, the board, or your fingers.***
Now your probably thinking, wow this guy sucks, a 5 year old could have thought of that. well as you think this, look around you. chances are there is at least one thing within sight that you don't use anymore. Go ahead, its calling your name. Recycle. This is one of the many ways to do it that people overlook.
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Thanks!
There is a little know secret to discharging the elements though, Rain water.
A way to do it more quickly...
Use a small (old !) electric grill and place your PCB, THT-components downwards, just under the heating spirals. Wait for the grill to get hot and... hit the PCB gently wit a screwdriver while it gets hot.
It will take some time for the solder to melt, but once the first salvaged part drops, most other parts follow soon.
With SMD-components one has got to place the PCB with the components upwards. Try to move an insignificant component while the PCB heats up.
You probably have to wait a little longer once you can, but then it's pretty easy to harvest most components with a knive or piece of metal.
Some SMD components are glued to the PCB, they'll still stick when all solder is melted. Just hit it with a little more speed and force to get those loose. You won't break pins since the solder is already liquid.
Last but not least, One should not forget health issues when gathering recycled parts this way. Good ventilation is a definite must, it's best to do this outdoors. One should also not use an oven/grill that is still used for the preparation of food.
The technique takes some getting used to and some components... may get damaged, but most turn out fine. A second hand grill shouldn't have to cost much more as $10-15.
I mean really......are you really saving the landfill from over flowing??
All of the crust that you are left with (for example: all of the plastic enclosures, ect....what are you going to do with that??
....I have an IDEA....send it to a liberal bonehead and let them recycle it.