References: <email@example.com> <firstname.lastname@example.org>
Subject: Re: Looking for someone to do PCB design for me (Mississauga, ON)
X-Newsreader: Microsoft Outlook Express 5.50.4920.2300
Date: Sun, 12 Jan 2003 00:01:30 GMT
NNTP-Posting-Date: Sat, 11 Jan 2003 19:01:30 EST
Organization: Road Runner - NC
One word of caution: After test, then snapping the boards apart, there
could be some failures from cracked solder joints. Had it happen,
especially if SMT.
remove "xyz" to email me directly
wrote in message
> On Fri, 10 Jan 2003 16:20:08 GMT, Grahame_Olney@nospam.com (Grahame
> Olney) wrote:
> >We manufacture a device that requires three boards to be
> >interconnected. Our layout actually consists one board with
> >break-lines separating the three boards. We buy the boards as a single
> >"board" instead of as three, thereby reducing our costs. The boards
> >are automatically assembled as one unit including the interconnecting
> >flex-cable between the boards. This allows us to immediate test the
> >board for full unit functionality even before the boards are snapped
> >into three separate boards and mounted into the case.
> >When we approached various PCB layout contractors for our layout
> >requirements, they all wanted to quote the job as three jobs and
> >triple the price. Instead, I had the company buy the design layout
> >tools and we did it inhouse. I highly recommend considering this sort
> >of board-set approach to reduce costs. :)
> That's downright silly (of the contractors).
> I usually budget 4 hours for the DFM audit on a single PCB card.
> Instead of 12 hours for 3 boards, I would budget 5 hours for the
> It does take a -little- more time; you need to verify that the
> aperature lists are identical for the 3 boards, and there is the
> panelization step.
> Other than that, it should have been treated as one design; just total
> up all the parts, and quote accordingly.