Eagle auto routing newbie question

Hi all,

Here it goes.

I use Eagle layout editor 4.

I have created a schematic and I switch the board where I place the
components. I start the autorouter, everything works fine but let's say
that I realise that the design would benefit from moving one component
to another location. Moving the component is no drama but my problem is
that I can't figure out how to start the autorouter with the new
layout.

Advice how to do this is very much appreciated.

 

[mike]

myoldmitsu@yahoo.com.au wrote:

Hi all,

Here it goes.

I use Eagle layout editor 4.

I have created a schematic and I switch the board where I place the
components. I start the autorouter, everything works fine but let's say
that I realise that the design would benefit from moving one component
to another location. Moving the component is no drama but my problem is
that I can't figure out how to start the autorouter with the new
layout.

Advice how to do this is very much appreciated.

Publish what you find. The only thing I've been able to do is unroute
everything and start over. Very annoying when 95% of it's good and you
only need to tweek one thing. The new route may be totally different
and much worse overall.

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[David Harmon]

On 19 Nov 2004 20:51:02 -0800 in sci.electronics.cad,
myoldmitsu@yahoo.com.au wrote,

I have created a schematic and I switch the board where I place the
components. I start the autorouter, everything works fine but let's say
that I realise that the design would benefit from moving one component
to another location. Moving the component is no drama but my problem is
that I can't figure out how to start the autorouter with the new
layout.

Well, I don't know what the mystery is. If routing is not complete
and you still have airwires, you restart the autorouter the same way
you started it the first time. If there are no airwires, rip up
some traces with the yellow rip-up icon tool to create some, then
restart autoroute. Draw a box over the moved component with the
group tool, then click rip-up, and right-click to unroute all of the
grouped connections. Or rip up everything to start from scratch.
Or whatever you want.