Homebrew PCBs

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.
http://www.learnmorsecode.com/regen/04bottom.jpg
which makes for parts layout wide enough to actually not trip over parts:
http://www.learnmorsecode.com/regen/04top.jpg
http://www.learnmorsecode.com/regen/00regen.html

On 04/08/2018 06:55 PM, cs6061@... [Homebrew_PCBs] wrote:
>
> 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
>
>