Eeyore wrote:
>
> Tim Wescott wrote:
>
>> Eeyore wrote:
>>> Now, only a little while back I said I never breadboard, I go straight
>>> to pcb.
>>>
>>> This one's different though. The client wants to do the layout as part
>>> of a larger scheme and I want to be double sure of stability in
practice
>>> as opposed to simulation because if he messes up, I can show mine
>>> working fine.
>>>
>>> As I'll be using a 65MHz ? op-amp I don't trust perfboard / Veroboard
>>> for this.
>>>
>>> I recall some self adhesive 'pre-etched shapes' that you could stick
on
>>> a ground plane. The name Wainwright comes to mind but google isn't
>>> helping much.
>>>
>>> Any suggestions ?
>>>
>>> Graham
>> Make a layout on Eagle or your fav' tool, and get it fabricated at a
>> fast-turn PCB house. If you're charging a reasonable rate you'll spend
>> less than two hours (and probably one) for a small hand full of 2-sided
>> boards, and you'll save more time than that by not having to fiddle
with
>> a new technology or agonize over whether those stick down strips (or
>> whatever) are really doing their job.
>>
>> And you'll have a much closer model to the real thing.
>>
>> If you were in the US I'd send you to PCB Express
>> (http://www.pcbexpress.com/).
>
> How do they compare to expresspcb, whom I have used ?
>
> Graham
>
IIRC expresspcb uses proprietary software, and if you can get your hands
on gerbers it comes extra. PCBExpress takes gerbers and a drill file,
and mails you back PC boards.
Their 'base' service is 1 day, fairly inexpensive, no silk, no solder,
two sided only, and they specify the drill sizes (I think there are 23
to choose from, however, so unless you need precision holes you'll get
something close enough).
So you can pretty much use your regular design process and tools, even
to the point of sending the exact same gerbers to a full-service board
house when you're done with PCBExpress.
I can't imagine that some enterprising eastern European entrepreneurs
aren't doing this now, at least until their countries are overrun by
Russia.
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" gives you just what it says.
See details at http://www.wescottdesign.com/actfes/actfes.html
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