Electronics Computer-Aided Design trouble with wires in Eagle ?

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Subject Author Date
trouble with wires in Eagle ? robb 10-19-07
Posted by robb on October 19, 2007, 2:41 pm
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so i am trying to use Eagle (latest freebie version 4.16r2)
to create a small schematic of an old PCB.
( 4 ICs, 5 resistors, 12 buttons, couple diodes/ caps/ ribbon
connectors)

i added the components to the schematic and started wiring (with
problems)

Problem :
i can draw wires but the wires do not stick predictably to the
components and how do you join the wires ???

EG. i draw a wire to connect several components (i.e. component
pins) then i try to move some of the components and for one the
wire sticks and will follow the component wwhen moved but for
another it leaves the wire behind ? when i try to fix by
re-dropping or moving the wire to the connection it does not stay
again

when i try to oin wires to others it does not seem to work ,that
is i can drop it onto the wire and it looks connected on screeen
but if you move the connected wire the joined wiree stays put and
will not follow move thus not connected.

what am i doing incorrectly ?
robb




Posted by Martin Riddle on October 19, 2007, 6:12 pm
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The Grid settings are wrong.
You need to set the grid to the default 50thou
Then place the components.
Currently the components are off grid and you cannot snap the wire to them.
You can salvage what you have by setting the grid to 1 thou.

Cheers

> so i am trying to use Eagle (latest freebie version 4.16r2)
> to create a small schematic of an old PCB.
> ( 4 ICs, 5 resistors, 12 buttons, couple diodes/ caps/ ribbon
> connectors)
>
> i added the components to the schematic and started wiring (with
> problems)
>
> Problem :
> i can draw wires but the wires do not stick predictably to the
> components and how do you join the wires ???
>
> EG. i draw a wire to connect several components (i.e. component
> pins) then i try to move some of the components and for one the
> wire sticks and will follow the component wwhen moved but for
> another it leaves the wire behind ? when i try to fix by
> re-dropping or moving the wire to the connection it does not stay
> again
>
> when i try to oin wires to others it does not seem to work ,that
> is i can drop it onto the wire and it looks connected on screeen
> but if you move the connected wire the joined wiree stays put and
> will not follow move thus not connected.
>
> what am i doing incorrectly ?
> robb
>
>
>



Posted by robb on October 19, 2007, 9:13 pm
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> The Grid settings are wrong.
> You need to set the grid to the default 50thou
> Then place the components.
> Currently the components are off grid and you cannot snap the
wire to them.
> You can salvage what you have by setting the grid to 1 thou.
>
> Cheers
>

thanks martin
i'll give that a try
robb

>
> > so i am trying to use Eagle (latest freebie version 4.16r2)
> > to create a small schematic of an old PCB.
> > ( 4 ICs, 5 resistors, 12 buttons, couple diodes/ caps/ ribbon
> > connectors)
> >
> > i added the components to the schematic and started wiring
(with
> > problems)
> >
> > Problem :
> > i can draw wires but the wires do not stick predictably to
the
> > components and how do you join the wires ???
> >



Posted by John Larkin on October 19, 2007, 9:59 pm
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>so i am trying to use Eagle (latest freebie version 4.16r2)
>to create a small schematic of an old PCB.
> ( 4 ICs, 5 resistors, 12 buttons, couple diodes/ caps/ ribbon
>connectors)
>
> i added the components to the schematic and started wiring (with
>problems)
>
>Problem :
>i can draw wires but the wires do not stick predictably to the
>components and how do you join the wires ???
>
>EG. i draw a wire to connect several components (i.e. component
>pins) then i try to move some of the components and for one the
>wire sticks and will follow the component wwhen moved but for
>another it leaves the wire behind ? when i try to fix by
>re-dropping or moving the wire to the connection it does not stay
>again
>
>when i try to oin wires to others it does not seem to work ,that
>is i can drop it onto the wire and it looks connected on screeen
>but if you move the connected wire the joined wiree stays put and
>will not follow move thus not connected.
>
>what am i doing incorrectly ?
>robb
>
>

Lots of schematic programs can do the near-miss thing, and most can
leave dangling wire segments. PADS can do neither. The only type of
schematic wire is a connection.

John




Posted by robb on October 20, 2007, 8:55 am
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wrote:
>
> >
> > i added the components to the schematic and started wiring
(with
> >problems)
> >
>
> Lots of schematic programs can do the near-miss thing, and most
can
> leave dangling wire segments. PADS can do neither. The only
type of
> schematic wire is a connection.
>
> John
>
thanks John,
looks good but do they have an HE suite ? (hobby edition)
one that does not involve loans or leans :)

robb



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