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Circuit board redesign (Read 29270 times)
Achim Berg
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Germany, near Cologne
Re: Circuit board redesign
Reply #45 - 04/21/10 at 11:40:38
 
for those who are able to corrode the circuit board i have developed a
solder stop mask for Rev 3.2a
. I use this in combination with soldestop ink that is available as a photonegative foil which has to be transfered to the  developed, corroded  and not drilled circuit board. After that you only have to develop and fix it with heat/preassure and an UV lamp.
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« Last Edit: 04/22/10 at 14:47:40 by Achim Berg »  

Solderstop_OCC_board_v32a.jpg (Attachment deleted)
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Achim Berg
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Re: Circuit board redesign
Reply #46 - 04/21/10 at 11:41:11
 
and as tif as well
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« Last Edit: 04/22/10 at 09:23:52 by Achim Berg »  

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Achim Berg
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Re: Circuit board redesign
Reply #47 - 04/22/10 at 14:39:49
 
Hello together,

ups i did it again Smiley

Here again a new version of the circuit board, now
Rev 3.2b
. While i was seeking a 3V LED ( i didnīt find one ) i decided to rework the layout again. I tried to leave everyting in place, but it doesnīt work with taking position of resistor R3 & R4. Those resistors (R3 & R4) came a little bit closer to the connector but they are still there.

New are five SMD pads for the resistors R1 to R4. Now everyone can decide if standard or an SMD 1206 type resistors  are used.
New is resistor R5, near LED D3
.
This SMD pad has to be bridged if a 3V LED is used. If a standard LED is used a SMD Resistor with 47 Ohm / 0,25 watt  ( Typ 1206 ) has to be installed
.
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« Last Edit: 04/22/10 at 15:54:36 by Achim Berg »  

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Achim Berg
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I love HDR

Posts: 177
Germany, near Cologne
Re: Circuit board redesign
Reply #48 - 04/22/10 at 15:34:49
 
For those who are able to corrode the circuit board i have developed a
solder stop mask for Rev 3.2b
also.
Donīt mix with board Rev 3.2a. The boards are a little bit different!
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Blochi
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Re: Circuit board redesign
Reply #49 - 05/18/10 at 22:35:10
 
Very well.


I just updated the front page to Revision 3.2b.  Took special care of the PDF, because I figured many people will prefer to read it that way. Both, website and PDF are now in sync.

http://www.hdrlabs.com/occ/files/Documentation/OCC_Cable_Documentation.pdf


Alright, so then lets close this thread. For the next revision, please step forward to 3.3 or even further and open up a new thread. USB controller certainly qualifies for a big fat 4. Wink

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Tomas Mac Master
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Re: Circuit board redesign
Reply #50 - 06/28/10 at 22:23:21
 
Steve and everyone,
it's very nice to see what a community can do, thanks to you all.
I have a request to do: Can you all please post the Eagle files too? yes, the .jpg or .tif images are nice to  see the schematic or the final art but the Eagle files would be of great utility to advance and push any other design modifications. Just my though.

Thanks again.
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