Thorough explanation of Eagle Layers

Am 28.06.2016 um 16:43 schrieb Chris Denney:

I'm trying to put together a really helpful, thoroughly detailed document, that explains what the layers of Eagle are used for by default and how engineers should make the best use of them. I want to include screenshot examples and explanations of what happens to that layer after the engineer is done with it. In other words how does a manufacturer interpret this particular layer and what do they do with it. What does the DRC do with it.

 

I've started a very VERY rough draft here. But I'm really not all that knowledgeable about Eagle. So I was hoping the community might be interested in helping me out. Any input would be appreciated it. Also, if such a document already exists (which I've been unable to find) please let me know and I'll gladly drop this project and use it.

 

http://www.worthingtonassembly.com/eagle-layers

 

-Chris

 

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Help layer

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Mit freundlichen Grüßen / With best regards

Joern Paschedag

On 06/28/2016 11:51 AM, Joern Paschedag wrote:

Am 28.06.2016 um 16:43 schrieb Chris Denney:

I'm trying to put together a really helpful, thoroughly detailed

document, that explains what the layers of Eagle are used for by

default and how engineers should make the best use of them. I want to

include screenshot examples and explanations of what happens to that

layer after the engineer is done with it. In other words how does a

manufacturer interpret this particular layer and what do they do with

it. What does the DRC do with it.

 

I've started a very VERY rough draft here. But I'm really not all

that knowledgeable about Eagle. So I was hoping the community might

be interested in helping me out. Any input would be appreciated it.

Also, if such a document already exists (which I've been unable to

find) please let me know and I'll gladly drop this project and use it.

 

http://www.worthingtonassembly.com/eagle-layers

 

-Chris

 

--

To view any images and attachments in this post, visit:

https://www.element14.com/community/message/200374

 

 

Help layer

 

Often times, the best way to learn a subject is to teach it.

The manual and tutorial documents that come with Eagle are the definitive

source.

Layers in Eagle only pertain to the CAD program. As you move on to

manufacturing you usually pass them Gerbers files which relate to the CAD

layers but are often a combination of layers. The manufacturer sees these

files as a layer each.

HTH

Warren

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Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

The manual and tutorial documents that come with Eagle are the definitive

source.

Layers in Eagle only pertain to the CAD program. As you move on to

manufacturing you usually pass them Gerbers files which relate to the CAD

layers but are often a combination of layers. The manufacturer sees these

files as a layer each.

HTH

Warren

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Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

Exactly! So that's what I'm trying to do

You're completely right Warren. I guess my goal with this though is to get a little more thorough detail than the manual provides.

I am the manufacturer, so I know what details I need in the gerber data. But what I'm finding is that customers are sending us incomplete gerber files. Data about polarity would sometimes be in layers that did not get printed in the silkscreen. So I'm trying to put together a really nice, helpful document to send to customers that can help them make the path to manufacturing easier. I'm hoping that in this effort, it might also become a valuable resource for the community.

Thanks

-Chris

On 06/30/2016 08:18 AM, Chris Denney wrote:

You're completely right Warren. I guess my goal with this though is to get a little more thorough detail than the manual provides.

 

I am the manufacturer, so I know what details I need in the gerber data. But what I'm finding is that customers are sending us incomplete gerber files. Data about polarity would sometimes be in layers that did not get printed in the silkscreen. So I'm trying to put together a really nice, helpful document to send to customers that can help them make the path to manufacturing easier. I'm hoping that in this effort, it might also become a valuable resource for the community.

 

Thanks

-Chris

 

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To view any images and attachments in this post, visit:

https://www.element14.com/community/message/200543

 

One of the problems the new user runs into is that silk screen data is

not in the correct layers in the parts they use. Normally Tplace has the

info for silk. Tdoc has additional info for assembly documentation.

Paul

Yes, we have definitely seen that. And that's ok. Because so long as we still get the tDocu gerber file, we can at least interpret what direction parts are supposed to go, even if the polarity itself is not on the silkscreen layer. However, we've been finding some customers use a completely different layer, the tName for polarity info, which doesn't generally get exported as a gerber file. Once we explained to them what happened they updated their files to prevent it from happening again. Hopefully having a nice clean page like this that we can send them will be helpful.

-Chris