A collection of questions from a beginer

> Two clicks?

> First: ripup command

> Second: execute (the green light in the top toolbar)

Ahh, nice, thanks

Hmmmrrff, I need to read what it says on the screen,

Down to the left it mentions the GO command, sometimes

it is a disadvantage to have a large screeen, hehehe

> Search for "classes" in the manual, and the related dialog Edit -> Net

Ok, I will, thanks

Il 04/10/2012 08:29, Stefan Olsson ha scritto:

Is there a quck way of removing all the copper lines in the "Board view" with one click ?

As it is now I do "ripup" on every single line.

Two clicks?

First: ripup command

Second: execute (the green light in the top toolbar)

Or, according to the manual:

RIPUP;

Also, is it possible to route a specific net ?

By hand or with the autorouter?

For example, I want to route all the lines connected to ground (or supply) first with a little thicker line than the signal lines.

As now, I first have to route the board, rip up those lines that is directly connected to ground, reset the line thickness,

and do auto route.

Search for "classes" in the manual, and the related dialog Edit -> Net

classes.

Regards

Marco

Hi

Thanks a lot for your quick answear,

I found some SOt's by removing the hyphen, thanks.

Additonal stuff.

When the board is routed the first times, you usally place the components out and then give some test shoots

with the auto router to see how complicated the routign become and then start to move the components around

to get a simpler solution.

Is there a quck way of removing all the copper lines in the "Board view" with one click ?

As it is now I do "ripup" on every single line.

Also, is it possible to route a specific net ?

For example, I want to route all the lines connected to ground (or supply) first with a little thicker line than the signal lines.

As now, I first have to route the board, rip up those lines that is directly connected to ground, reset the line thickness,

and do auto route.

/Stefan

Am 01.10.2012 16:55, schrieb Stefan Olsson:

Why does not Eagle come with a most of the standard packages included, for exmaple,

if I do a seach for "SOT-223" this one do not show up, neither do SOT-25, SOT-89 etc.

If eagle have these standard packages, they should be searchable.

They ARE available, and you CAN search them. Unfortunately, different

manufacturers call them differently. In this case, EAGLE calls them

SOT223-5EV-VREGSOT223-5EV-VREG etc. (WITHOUT the hyphen).

When I a create a new device in the library I add the ">NAME" and ">VALUE" to the schematics,

but whne I include this created device the "NAME" become "U$1" why ? Should it not become IC1 ?

No. It should NOT automatically become IC1. Of course YOU know that you

have just created an IC component in the library, but EAGLE doesn't. You

might have just created a resistor, which should become R1, or a

capacitor, which should be named C1. Therefore, you must tell EAGLE in

the library HOW the component should be labelled:

In the device editor, use the PREFIX button at the bottom right and then

type in the prefix you want the component to have: R for resistors, C

for capacitors, IC for ICs, etc. The NUMBERS are set be EAGLE automatically.

When I create a new device I want to reserve an area where no copper may be used, filled or be drawned,

in any of the pcb layers. I assume I just create an area in the package editor of the device

but should it be of the type "41 tRestriced" or what ?

Yes. The 'Restrict' layers do that.

Do I have to add an area for each copper layer ?

Yes. Objects in the 'tRestrict' layer prevent copper from automatically

appearing in the TOP layer, 'bRestrict' for the BOTTOM layer.

Unplesant behaviour of the "Net" in schematic,

unless the pins for a device in the library is made in Imperial (100 mil distance) the Net does not

connect to the pins when making a schematic with the device.

This IS a restriction, yes, but ALL the library parts use that grid. And

it is a VERY good idea to build your library parts using that grid, too,

even if you perhaps don't like it too much.

Expected and normal behaviour should be that the "Net" automatically connects to the nearst

pin within +- 2 grid steps.

For simple schematics, that might be OK. For large or dense schematics,

this is NOT such a good idea, since it might easily create connections

to the WRONG pins.

Andreas Weidner

On 10/1/2012 10:55 AM, Stefan Olsson wrote:

Hi

 

Why does not Eagle come with a most of the standard packages included, for exmaple,

if I do a seach for "SOT-223" this one do not show up, neither do SOT-25, SOT-89 etc.

If eagle have these standard packages, they should be searchable.

They are searchable, you should perform the search from the layout

editor since packages can't be inserted into the schematic the schematic

search won't show packages. Most of the standard packages can be found

in the ref-packages.lbr or smd-ipc.lbr.

 

When I a create a new device in the library I add the ">NAME" and ">VALUE" to the schematics,

but whne I include this created device the "NAME" become "U$1" why ? Should it not become IC1 ?

How is EAGLE supposed to know that you made an IC? You could've made a

capacitor or an inductor etc. By default EAGLE will use U$1, you can set

the prefix you want to use by clicking the Prefix button in the Device

editor of the library.

 

When I create a new device I want to reserve an area where no copper may be used, filled or be drawned,

in any of the pcb layers. I assume I just create an area in the package editor of the device

but should it be of the type "41 tRestriced" or what ?

EAGLE has tRestrict, bRestrict, and vRestrict (Top, Bottom, and Vias

restriction). For the internal layers you'll have to isolate those on

the board using cutout polygons since there's no restrict layer for them.

Do I have to add an area for each copper layer ?

 

Unplesant behaviour of the "Net" in schematic,

unless the pins for a device in the library is made in Imperial (100 mil distance) the Net does not

connect to the pins when making a schematic with the device.

Expected and normal behaviour should be that the "Net" automatically connects to the nearst

pin within +- 2 grid steps.

That would be a very bad behaviour, since often there are multiple pins

within a +- 2 grid step radius. In EAGLE all of the library components

are made to a 0.1 grid for the schematic symbol. We strongly recommend

that you do not deviate from that on the schematic otherwise you're

going to have a heck of a time trying to get everything to connect. For

the layout use whatever is convenient but on the schematic don't deviate

from 0.1"(2.54mm).

See the new user cheat sheet at www.cadsoftusa.com -> Downloads ->

Documentation.

>

/Stefan

 

Hi Stefan,

I've responded in line above let me know if you have any other questions.

Best Regards,

Jorge Garcia