On Tue, Sep 15, 2015 at 7:22 PM, Christopher Havel <laserhawk64@gmail.com> wrote:

On Tue, Sep 15, 2015 at 1:18 PM, Luke Kenneth Casson Leighton <lkcl@lkcl.net> wrote:
[...] even i was unable to move the micro-desktop board (which is
only 4in x 4.5in) forward because i had designed it as a 4-layer PCB -
costs are around $400 for qty 5 4-layer prototype boards on a 3 week
turnaround by complete contrast, a 7-day turnaround for qty 5 2-layer
prototype (bare copper) boards with larger vias is around $40 for qty
2, and around $100 for qty 5.

Imbecile question: is it at all reasonably possible to redesign the micro-desktop board to be a 2-layer board?

If board have high speed design it is very unlikely that you can do it properly (because you have to be careful about routing to ground, you have many lines that you have to match etc etc and when you have only 2 layers it is difficult to keep it all correct). In theory maybe it could be possible but it is a hell of a work and then you risk a lot that PCB will not be good.

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