Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Hi,

i was wondering if there is a tutorial for advanced routing.
I mean as soon as you have two layers and more than 100components
it starts to get more difficult.
If there is no tutorial we could maybe exchange some tricks.

How do you start?
How do you decide which parts are on which side?
(i put the SMD ones on top which can be connected to throughhole without
adding a via, and i aim for the same population density top and bottom.)

Often it is required to rotate and rearrange parts to get a good layout,
but at a certain number of parts it is very hard to keep track of things.

Do you start routing with special nets, like supply?

You see, the methods i used for years on smaller circuits seem very, very
hard
to apply to bigger circuits, and i believe there must be some tricks i
don't
know yet.
Maybe if everyone throws in a few ideas we can all learn something.

I always use different color "rubber bands" for GND and VCC which helps a
bit.

ST