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Question about etching pcb's
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The hydroponic folks use 30% H202 to clean equipment etc.? It's available on line from Walmart, Amazon etc but it's seems rather expensive? at? around $23 per liter.
I used to do a lot of etching, mostly with ammonium persulfate, but these days I can can't justify doing it my self anymore.? Just got two boards done via JLCPCB in China, got 10 copies of each board for a total order price of $7.00. One board was $2 ( 3" x 3.5" two layer double sided .062 FR4) the other was $5 ( 2"? x 3.3" but .032" FR4).? The quality and delivery time (5 days) was superb.? I can't buy the raw stock for that price.? I don't know how they can make any money at those prices. Craig |
开云体育My 70mmX100mm PCBs cost 40 cents each.The time saved is really where I value printing my own PCBs. AND there is one more advantage to printing your own PCBs...caveman electronics style. HUGE traces.. I can see with my gnarly vision. Most of my traces are more than 1/8th inch wide.? I don't measure traces in MILs. So if I make a mistake or want to experiment I can just plain drill another hole and always find copper. which makes for parts layout wide enough to actually not trip over parts: On 04/08/2018 06:55 PM,
cs6061@... [Homebrew_PCBs] wrote:
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