How to make a PCB
japanese:
Hi all
Of the easiest ways to made pcb,
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best time
j.
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Mudflap:
Nice video. The solder joints at the end of the video looked a bit cold. Maybe he could add how to properly dispose of the ferric chloride. NO> DOWN THE DRAIN
"The solution must not be put down the drain because of residual copper ions left in it. To make it safe for disposal, you can add sodium carbonate (washing soda) or sodium hydroxide to it to neutralize it, until the pH value goes up to between 7.0 and 8.0, testing it with indicator paper. Copper will be deposited as a sludge. Allow the sludge to settle, pour off the liquid, further dilute it with water and then it can be poured down the drain. Collect the sludge in plastic bags and dispose of it as required by your local waste authority."
Or save in a sealed plastic jug and take to your household hazard materials recycle center. Much easier than having to handle the stuff several times while changing the pH.
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japanese:
Hi Mudflap
An excellent addition should be taken out and thank you for your reply and complete explanation of this site has a full explanation and pictures.
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best time
j.
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jbaileyj:
Great information. Thanks alot...
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Homefire:
Quote:Posted by MudflapNice video. The solder joints at the end of the video looked a bit cold. Maybe he could add how to properly dispose of the ferric chloride. NO> DOWN THE DRAIN
"The solution must not be put down the drain because of residual copper ions left in it. To make it safe for disposal, you can add sodium carbonate (washing soda) or sodium hydroxide to it to neutralize it, until the pH value goes up to between 7.0 and 8.0, testing it with indicator paper. Copper will be deposited as a sludge. Allow the sludge to settle, pour off the liquid, further dilute it with water and then it can be poured down the drain. Collect the sludge in plastic bags and dispose of it as required by your local waste authority."
Or save in a sealed plastic jug and take to your household hazard materials recycle center. Much easier than having to handle the stuff several times while changing the pH.
Better Yet, If you place a peace of Iron plate in the solution all the copper will deposit on it and you can use the solution yet again!
LOL!
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jbaileyj:
Homefire,
Could you please explain this further..
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Homefire:
After your Ferric Chloride gets Slow and Sludgy, Place a peace of Iron Strap,Plate even Bar in it over a few days.
The Copper Ions migrate to the Iron and plate it.
The Ferric Chloride no longer saturated with copper ready to do it's thing again.
This Free's up the Chloride to work again.
Try it.
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jbaileyj:
Thanks for the info Homefire.. I'll give it a try..
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Mudflap:
Thanks for that tip Homefire. I never tried that one. Usually chucked the etchant in the trash.
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Sebastos34:
I used this method, to do a TGSL board, with photo paper, and its works very well!!!
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