basic practical guidance please..

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my current project needs number of +3v +5v +9v , +12v feeds peripherals each sharing common
-ve ground.

i have male dupont pin strips intend solder onto rails of strip board in lengths sufficient provide 3v buss header 5v buss header 9v , 12v buss headers common ground header can plug dupont wires supply each peripheral required supply can secure each rail epoxy in accessible , isolated positions.. 

is reasonable plan or missing obvious?


thanks in advance



quote
is reasonable plan or missing obvious?
on face of sounds complex. use chain of voltage regulators derive supplies need.


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