Hello,

How far can a electronics hobbiest go before he hits manufacturing
limitations?  I recently read a few articles describing methods to
etch a blank PCB by pouring acid over a laserjet printed toner layout
that resists acid, creating a finished PCB.  One could then add
capacitors, resistors, and ICs... but how far can one go?  I
understand that making one's own PCB would yeild less precision and
could thus never achieve the same density as commercial productions,
but is it enough to build one's own computer hardware?  For example, a
PCI card?  Forgive my ignorance, but doesn't the ability to make one's
own PCBs only put ICs and microcontrollers out of our reach, which can
all be bought individually?

Thanks.
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