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Prototype 1 Boards

A project log for D-DAQ

automotive parameter & performance monitor & logger

michael-obrienMichael O'Brien 05/28/2014 at 05:552 Comments

If you saw my bit earlier, you'll know that I received my first set of PCBs today. I setup some time after unwinding from work to grab hi res photos of the boards so it'd be easier to QC areas that I know were very tight on tolerances and could be a problem. Some, like the mDP connectors, are unavailable at this time. Others, I just have to be careful and/or use a lab that has tighter tolerances.

Here are adjusted photos that show the areas I have to examine on each board:

Top side:

Bottom side of the board problem areas:

In general, I know that there are no plated slots on the board. They are structurally required for the USB ports and mDP receptacles. At the moment I'm going to live with it and use a dremel to trim the parts a tad.

High res photos of each board, from and back. They are 2000 pixels tall and ~3600-3700 pixels wide. They've been edited for contrast and inspection. If you think you see a problem, feel free to speak up.

Board 1

Board 2:

Board 3

Discussions

zakqwy wrote 05/28/2014 at 12:06 point
Congrats on getting the boards back. I haven't used Osh Park but I hear they do excellent work. Are you planning to hand solder these or use a DIY reflow setup?

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Michael O'Brien wrote 05/28/2014 at 22:23 point
Initial prototypes will be hadlnd soldered. I may be doing DIY reflow or have a lab assemble the small, fine pitch components and then I'll hand solder the rest.

Osh Park does produce good boards, though going all of the way down to the lab's tolerances runs to risk of bridging and other issues.

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