[hpsdr] Some thoughts on plug-in board layout

[Steven Bible]

Okay,

I went back a re-read Phils earlier post, and studied his drawing again.

The smallest board is 120 mm wide and 100 mm tall.  

Phil shows that Atlus is 100 mm wide.  From the edge of Atlus, we move 15 mm out into the area known as "external connector area".  This sets the datum.  Then the card is 120 mm wide from this datum.

Let me go back and revise my drawing.

- Steve N7HPR



-----Original Message-----
>From: Steven Bible <srbible at earthlink.net>
>Sent: May 25, 2006 5:02 PM
>To: hpsdr at hpsdr.org
>Subject: Re: [hpsdr] Some thoughts on plug-in board layout
>
>***** High Performance Software Defined Radio Discussion List *****
>
>Hi Lyle,
>
>Well, you are not going to like this.  I am not getting X = 3.925" (I do get Y = 0.210").  By my measurement, if the datum is the lower left of the "external connector area" then pin A1 is located at X = 4.115", Y = 0.210".
>
>If I read in the thread correctly, the smallest card is 100 mm x 100 mm.  If the DIN plug is centered in the middle of this card, and set it there, and then extend the PCB in the direction of the "external connector area" we add 15 mm more.  But this 15 mm is not taken into account for the card size?  This confuses me.  This card then is 115 mm wide by 100 mm tall.
>
>Sorry that this sounds convoluted, but I am just trying to understand what is ment by everyone.  That is why I created this mechanical drawing.  
>
>- Steve N7HPR
>
>
>-----Original Message-----
>>From: Lyle Johnson <kk7p at wavecable.com>
>>Sent: May 25, 2006 4:42 PM
>>To: Steven Bible <n7hpr at tapr.org>
>>Cc: hpsdr at hpsdr.org
>>Subject: Re: [hpsdr] Some thoughts on plug-in board layout
>>
>>Hello Steve!
>>
>>I am working on Janus now, in the new, improved 100mm x 120mm size.
>>
>>With the board datum (X = 0.00, Y = 0.00) located at the lower left 
>>corner of the board in the "connector area", the 96-pin DIN connector's 
>>pin A1 is located at X = 3.925", Y = 0.210".
>>
>>As near as I could place it, this lines up with Phil's dimensions.
>>
>>If it doesn't, we'll have to modify Phil's drawing ;-)  I'm getting 
>>pretty tired of re-laying the PC board!
>>
>>73,
>>
>>Lyle KK7P
>>
>
>
>\r\n- Steve\r\n  (n7hpr at tapr.org)\r\n
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\r\n- Steve\r\n  (n7hpr at tapr.org)\r\n

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