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Am I in the right direction?

icemanxp300
icemanxp300 over 6 years ago

Hi, so 3 years ago I managed to put together a very basic board. I am now working on something a bit more involved. Just wondering if what I am doing will work and I am confused on a few things as well.

 

First this board will not be perfectly rectangular it has notches in 2 corners and a few in the sides. I read that making a polygon and selecting cut-out will work in removing these unwanted areas. I used the miter option to round a few corners. I still have a few corners that need rounded but I cant do a polygon for those. Well they are part of the polygon I put in for what I want cut but the corner going to the pcb is what needs rounded. See bottom corners.

 

Second this board requires edge connectors which I drew in with wires. These are to be on both top and bottom in equal spots. I actually just copied the entire group and pasted up a bit higher and then changed them all to bottom and then lowered them in place and then adjusted them. The main thing I am not liking here is my components (header pins) I put in do not change sides when I view bottom. I understand it is showing me "the layers". However I really need these header pins to accurately show me what they will look like on the bottom w/those bottom edge pins. I need to connect wire traces from both sides of those header pins.

 

Some traces get routed from top side header pins to top edge connectors but most pins get routed from bottom side header pins to edge connectors. I used header pins because it was all I could find that matches the hole sizes for the parts I am using. The edge connectors will have to be gold plated as well.

 

Will I have to run wires from these components as a bottom side looking at the components in reverse?

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  • dougw
    dougw over 6 years ago +2
    What CAD software are you using? Normally you would make connections and route traces on the bottom in a different color so you can tell which side the traces are on, but the routing is done from the top…
  • autodeskguest
    autodeskguest over 6 years ago +1
    Gregory Sprague wrote: <[...] First this board will not be perfectly rectangular it has notches in 2 corners and a few in the sides. I read that making a polygon and selecting cut-out will work in removing…
Parents
  • autodeskguest
    autodeskguest over 6 years ago

    On 21/12/18 02:08, Gregory Sprague wrote:

     

    First this board will not be perfectly rectangular it has notches in 2 corners and a few in the sides. I read that making a polygon and selecting cut-out will work in removing these unwanted areas. I used the miter option to round a few corners. I still have a few corners that need rounded but I cant do a polygon for those. Well they are part of the polygon I put in for what I want cut but the corner going to the pcb is what needs rounded. See bottom corners.

     

    Don't use polygons. As Lorenz said, what you have done will have no

    effect on board shape. The board shape must be drawn as a continuous

    poly-line (using the line tool) on the dimension layer. There is no

    constraint on its shape other than it must be fully closed, i.e. every

    segment must end on the same points as two other segments.

     

     

    Second this board requires edge connectors which I drew in with wires.

     

    Don't use wires. Use an edge connector library part with appropriately

    sized SMD pads.

     

    The main thing I am not liking here is my components (header pins) I put in do not change sides when I view bottom. I understand it is showing me "the layers".

     

    Which version of Eagle are you using? Recent ones (V9) allow you to flip

    the board view.

     

    However I really need these header pins to accurately show me what they will look like on the bottom w/those bottom edge pins. I need to connect wire traces from both sides of those header pins.

     

    I assure you, you really DO NOT "need" to see the bottom view. You may

    feel more reassured by it but you can certainly design boards far more

    complex than yours with only the default "view through from top".

     

     

    Some traces get routed from top side header pins to top edge connectors but most pins get routed from bottom side header pins to edge connectors. I used header pins because it was all I could find that matches the hole sizes for the parts I am using. The edge connectors will have to be gold plated as well.

     

    Will I have to run wires from these components as a bottom side looking at the components in reverse?

     

    You have not said how you intend to get this board made. If it's not a

    home-etch (and since you say you need gold plating I suspect it won't

    be) then you will be ordering a PTH board where all the header pin holes

    have copper rings on both sides and a copper sleeve joining them. It

    matters not a jot whether the traces are on the same side or opposite

    side to the header pin.

     

    I also strongly get the impression you're just throwing a board together

    with no reference. DO NOT DO THAT! Some of your perceived problems are

    caused by it. Design a schematic and create your own library parts for

    any components you use that you can't find existing ones for.

     

     

     

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  • autodeskguest
    autodeskguest over 6 years ago

    On 21/12/18 02:08, Gregory Sprague wrote:

     

    First this board will not be perfectly rectangular it has notches in 2 corners and a few in the sides. I read that making a polygon and selecting cut-out will work in removing these unwanted areas. I used the miter option to round a few corners. I still have a few corners that need rounded but I cant do a polygon for those. Well they are part of the polygon I put in for what I want cut but the corner going to the pcb is what needs rounded. See bottom corners.

     

    Don't use polygons. As Lorenz said, what you have done will have no

    effect on board shape. The board shape must be drawn as a continuous

    poly-line (using the line tool) on the dimension layer. There is no

    constraint on its shape other than it must be fully closed, i.e. every

    segment must end on the same points as two other segments.

     

     

    Second this board requires edge connectors which I drew in with wires.

     

    Don't use wires. Use an edge connector library part with appropriately

    sized SMD pads.

     

    The main thing I am not liking here is my components (header pins) I put in do not change sides when I view bottom. I understand it is showing me "the layers".

     

    Which version of Eagle are you using? Recent ones (V9) allow you to flip

    the board view.

     

    However I really need these header pins to accurately show me what they will look like on the bottom w/those bottom edge pins. I need to connect wire traces from both sides of those header pins.

     

    I assure you, you really DO NOT "need" to see the bottom view. You may

    feel more reassured by it but you can certainly design boards far more

    complex than yours with only the default "view through from top".

     

     

    Some traces get routed from top side header pins to top edge connectors but most pins get routed from bottom side header pins to edge connectors. I used header pins because it was all I could find that matches the hole sizes for the parts I am using. The edge connectors will have to be gold plated as well.

     

    Will I have to run wires from these components as a bottom side looking at the components in reverse?

     

    You have not said how you intend to get this board made. If it's not a

    home-etch (and since you say you need gold plating I suspect it won't

    be) then you will be ordering a PTH board where all the header pin holes

    have copper rings on both sides and a copper sleeve joining them. It

    matters not a jot whether the traces are on the same side or opposite

    side to the header pin.

     

    I also strongly get the impression you're just throwing a board together

    with no reference. DO NOT DO THAT! Some of your perceived problems are

    caused by it. Design a schematic and create your own library parts for

    any components you use that you can't find existing ones for.

     

     

     

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Cancel
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