Swap layers in Eagle - Electronic Circuits Projects Diagrams Free

andy_rb · 28th February 2009, 04:12 AM

Hello All

I'm using Eagle to make a PCB for the first time and have designed a board with the solder layer on top rather than on the bottom. Doh! Thankfully I noticed before I actually made the board!

Does anyone know an easy way I can swap the routes between the two layers on the board in Eagle? (i.e. take the top routes and put them on the bottom layer and vice versa)

Thanks

Andy

3v0 · 28th February 2009, 04:37 AM

CHANGE LAYER BOTTOM

change is the wrench icon, click it and select a layer in the list of layers. Then click a trace to cause it to change to the bottom. Or group several traces then right click and select CHANGE GROUP fromthe drop down.

MIRROR will swap parts between top and bottomlayer.

Boncuk · 28th February 2009, 04:44 AM

Layers can't be changed with groups in older Eagle versions (3.55). It might work well in Eagle 5.4.0.

In order to change traces from top to bottom layer you will have to change trace by trace and bend by bend.

Before you do that you might try to group the entire PCB design with all used layers displayed. When grouped click "mirror". This will mirror all parts and put the traces on the other layer. (from top to bottom and vice versa).

Part names and values will be displayed accordingly. Smashing the parts and mirroring names and values you get a normally displayed silk screen. Disable the "t-Origin" layer (23) after smashing and only mirror the text.

Boncuk

andy_rb · 28th February 2009, 05:11 AM

Hi All

Thanks for the quick replies!

It's looking better already. Just need to get the ground plane on the top and I'm pretty much done.

Cheers

Andy

Boncuk · 28th February 2009, 10:15 AM

Show us what you've done.

andy_rb · 28th February 2009, 10:37 AM

Hi All

I'm using Eagle 5.4.0 so I had no problems with changing the layers.

First, I removed the polygon that formed the ground plane on the bottom layer.
Then I used 'change / layers' as 3v0 suggested to move all the top traces to the bottom. I had a few traces that had to move the other way but not many.
Then I recreated the ground plane, on the top using polygon.

Cheers

Andy

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28th February 2009, 04:12 AM	#1
andy_rb	Swap layers in Eagle Hello All I'm using Eagle to make a PCB for the first time and have designed a board with the solder layer on top rather than on the bottom. Doh! Thankfully I noticed before I actually made the board! Does anyone know an easy way I can swap the routes between the two layers on the board in Eagle? (i.e. take the top routes and put them on the bottom layer and vice versa) Thanks Andy

28th February 2009, 04:37 AM	#2
3v0	CHANGE LAYER BOTTOM change is the wrench icon, click it and select a layer in the list of layers. Then click a trace to cause it to change to the bottom. Or group several traces then right click and select CHANGE GROUP fromthe drop down. MIRROR will swap parts between top and bottomlayer. __________________ Please post questions to the forums. PM's are for personal communication. BCHS/3v0's Tutorials Junebug USB PIC programmer kit., USB Bit Whacker, The 15 Minute Printed Circuit Board! (+drill time) Last edited by 3v0; 28th February 2009 at 04:41 AM.

28th February 2009, 04:44 AM	#3
Boncuk	Layers can't be changed with groups in older Eagle versions (3.55). It might work well in Eagle 5.4.0. In order to change traces from top to bottom layer you will have to change trace by trace and bend by bend. Before you do that you might try to group the entire PCB design with all used layers displayed. When grouped click "mirror". This will mirror all parts and put the traces on the other layer. (from top to bottom and vice versa). Part names and values will be displayed accordingly. Smashing the parts and mirroring names and values you get a normally displayed silk screen. Disable the "t-Origin" layer (23) after smashing and only mirror the text. Boncuk __________________ Proper Planning Prevents Piss Poor Performance Last edited by Boncuk; 28th February 2009 at 04:59 AM.

28th February 2009, 05:11 AM	#4
andy_rb	Swap layers Hi All Thanks for the quick replies! It's looking better already. Just need to get the ground plane on the top and I'm pretty much done. Cheers Andy

28th February 2009, 10:15 AM	#5
Boncuk	Show us what you've done. __________________ Proper Planning Prevents Piss Poor Performance

28th February 2009, 10:37 AM	#6
andy_rb	Eagle - Swapping layers Hi All I'm using Eagle 5.4.0 so I had no problems with changing the layers. First, I removed the polygon that formed the ground plane on the bottom layer. Then I used 'change / layers' as 3v0 suggested to move all the top traces to the bottom. I had a few traces that had to move the other way but not many. Then I recreated the ground plane, on the top using polygon. Cheers Andy