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SMD on single sided board with Through Hole components?

augustoagc

Hello. I'm new here as well as a new Eagle user.

Going straight to the point, I'm just a hobbyist. I transfer muy pcbs using transfer paper.

 

The thing is that I now need to use some SMD components on a pcb I'm making that also has through hole components. What I usually do is print the PCB unmirrored and transfer it to the PCB. That way, I can mount the components from the back. That is, solder from the bottom of the PCB. However you want to look at it.

Now that I have SMDs, I need the SMD pad, and only that, to be mirrored at the time of printing so that, when I transfer, it only this is left unmirrored.

But when I mirror a component, Eagle sends it to the bottom layer. And there is nothing I can do (that I know of) to bring it back to the top layer in this state. The only way is to unmirror it.

So basically, Eagle is forcing me to do a two layer PCB when a single layer is more than enough.

 

I hope I was clear enough... if not please ask,

Thank you!

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    On 5/06/2017 3:11 p.m., Augusto Garcia Cinselli wrote:

    Hello. I'm new here as well as a new Eagle user.

    Going straight to the point, I'm just a hobbyist. I transfer muy pcbs using transfer paper.

     

    The thing is that I now need to use some SMD components on a pcb I'm making that also has through hole components. What I usually do is print the PCB unmirrored and transfer it to the PCB. That way, I can mount the components from the back. That is, solder from the bottom of the PCB. However you want to look at it.

    Now that I have SMDs, I need the SMD pad, and only that, to be mirrored at the time of printing so that, when I transfer, it only this is left unmirrored.

    But when I mirror a component, Eagle sends it to the bottom layer. And there is nothing I can do (that I know of) to bring it back to the top layer in this state. The only way is to unmirror it.

    So basically, Eagle is forcing me to do a two layer PCB when a single layer is more than enough.

     

    I hope I was clear enough... if not please ask,

    Thank you!

     

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

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    Hi

    Your description is less than clear so maybe the following will help.

    Eagle is always a view from the top through the board.

     

    Conventionally, if you were to design a one layer board with through

    hole components you would place the components on the top side and

    solder on the bottom layer. All your tracks (routing) are on the bottom

    layer and hence any SMD will need to be there as well.

     

    So for an SMD on the bottom layer, you need to mirror them. This has the

    effect of making then present correctly (pin wise) as you view the board

    from the top.

     

    Then you print the lower layer mirrored so its correct for toner transfer.

     

    HTH

    Warren

     

     

     

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    On 5/06/2017 3:11 p.m., Augusto Garcia Cinselli wrote:

    Hello. I'm new here as well as a new Eagle user.

    Going straight to the point, I'm just a hobbyist. I transfer muy pcbs using transfer paper.

     

    The thing is that I now need to use some SMD components on a pcb I'm making that also has through hole components. What I usually do is print the PCB unmirrored and transfer it to the PCB. That way, I can mount the components from the back. That is, solder from the bottom of the PCB. However you want to look at it.

    Now that I have SMDs, I need the SMD pad, and only that, to be mirrored at the time of printing so that, when I transfer, it only this is left unmirrored.

    But when I mirror a component, Eagle sends it to the bottom layer. And there is nothing I can do (that I know of) to bring it back to the top layer in this state. The only way is to unmirror it.

    So basically, Eagle is forcing me to do a two layer PCB when a single layer is more than enough.

     

    I hope I was clear enough... if not please ask,

    Thank you!

     

    --

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

    https://www.element14.com/community/message/223493

     

     

     

    Hi

    Your description is less than clear so maybe the following will help.

    Eagle is always a view from the top through the board.

     

    Conventionally, if you were to design a one layer board with through

    hole components you would place the components on the top side and

    solder on the bottom layer. All your tracks (routing) are on the bottom

    layer and hence any SMD will need to be there as well.

     

    So for an SMD on the bottom layer, you need to mirror them. This has the

    effect of making then present correctly (pin wise) as you view the board

    from the top.

     

    Then you print the lower layer mirrored so its correct for toner transfer.

     

    HTH

    Warren

     

     

     

    --

    ... use NNTP://news.cadsoft.de and a functional news reader like

    Thunderbird!

    ... or http://www.eaglecentral.ca browser access to CadSoft EAGLE

    support forums.

     

    ---

    This email has been checked for viruses by Avast antivirus software.

    https://www.avast.com/antivirus

     

     

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