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From: who where on 2 Dec 2009 18:12
On Wed, 2 Dec 2009 02:44:24 -0600, "Jon Slaughter"
<Jon_Slaughter(a)Hotmail.com> wrote:

(snip)

>It seems cheaper... I hope without a loss of quality.

We/ve ordered heaps from pcbcart and never had a quality issue.

>One thing. Do you think it is an issue to get them v-scored properly long
>the pcb as it is not-rectangular(in fact I would like to get them to cut it
>exactly out... it needs to be done by a machine and not by hand and I don't
>really want to do it myself).

From pcbcart I've had straight-line (i.e. rectangular board) V-scoring
but usually get the boards completely router separated.
From: Joerg on 2 Dec 2009 19:15
Jon Slaughter wrote:
> Ok, I know I've asked these questions a thousand times but heres the
> final one(as I'm ready to send off for fab).
>
> I have an approximately 20x2.5 pcb(actually 19.5x2.3). It is
> non-rectanular(sorta tapers) and consists of 2 layers with about 350
> 10mil(hole) vias. It has a total of 222 components. About 20 IC's in
> 32-pin QFN's and 1 28-pin TQFP. The rest are 402's and a few 603's and
> 805's. (might add a few larger bypass caps before I send). Traces are
> all around 10mil's with a few larger and I think none are smaller. I
> think all spacing is > 10mils.
>
> 4pcb quotes me around 20-25$(depending on how I select a few variables
> such as copper thickness and "extra room", etc...) for 30-42.
>
> This seems like a rather good deal from what I've seen. Most others
> won't even go up past about 14" to 15" so I'm kinda SOOL there anyways.
>
>
> In any case, everything seems to look good from the quote. Anyone have
> any experience with this site as far as reputation and quality? I'm a
> bit worried because they kinda spammed my email when I registered and
> there site looks a little low quality.
>

I have had a few runs fab'd there. Good quality, can't complain.


> Or anyone know of another fab that can do the size I need at around 20$
> @ about 30-40? I was thinking that I could split the board in 2 halves
> but this is far from ideal. The biggest problem is that I would have to
> connect them back in a seemless way with some mechanical strength(with
> no significant change in the profile). While this isn't difficult the
> real challenge is being able to do this in the gerber files. (if I could
> simply cut them and drag the other half around then it wouldn't be an
> issue and I might go down that route)
>

There I can't help you much. My recent projects went turn-key where they
take care of board fab, purchasing the parts and assembly. The last one
was done here:

http://www.aapcb.com/

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
From: TTman on 3 Dec 2009 03:12
SNIP
>
> I have had a few runs fab'd there. Good quality, can't complain.
>
>
>> Or anyone know of another fab that can do the size I need at around 20$ @
>> about 30-40? I was thinking that I could split the board in 2 halves but
>> this is far from ideal. The biggest problem is that I would have to
>> connect them back in a seemless way with some mechanical strength(with no
>> significant change in the profile). While this isn't difficult the real
>> challenge is being able to do this in the gerber files. (if I could
>> simply cut them and drag the other half around then it wouldn't be an
>> issue and I might go down that route)
>>
>
> There I can't help you much. My recent projects went turn-key where they
> take care of board fab, purchasing the parts and assembly. The last one
> was done here:
>
> http://www.aapcb.com/
>
> --
> Regards, Joerg
>
> http://www.analogconsultants.com/
>
> "gmail" domain blocked because of excessive spam.
> Use another domain or send PM.

In the UK..... I had the recent pleasure of a tour of the facilities at
sti-limited.com. Amazing place, esp. the 127K components p/hr pick
&place.Can do down to 1-005 parts- so long as you can see them to load the
machine lol.
Ultra impressive bga rework area ( fixing track errors under the BGA.) with
a 'sandwich' pcb.Not cheap tho, as most of their work is to Mil/aerospace
specs, so they have leaded as well as ROHS/lead free lines.


From: Joerg on 3 Dec 2009 11:17
TTman wrote:
> SNIP
>> I have had a few runs fab'd there. Good quality, can't complain.
>>
>>
>>> Or anyone know of another fab that can do the size I need at around 20$ @
>>> about 30-40? I was thinking that I could split the board in 2 halves but
>>> this is far from ideal. The biggest problem is that I would have to
>>> connect them back in a seemless way with some mechanical strength(with no
>>> significant change in the profile). While this isn't difficult the real
>>> challenge is being able to do this in the gerber files. (if I could
>>> simply cut them and drag the other half around then it wouldn't be an
>>> issue and I might go down that route)
>>>
>> There I can't help you much. My recent projects went turn-key where they
>> take care of board fab, purchasing the parts and assembly. The last one
>> was done here:
>>
>> http://www.aapcb.com/
>>
>> --
>> Regards, Joerg
>>
>> http://www.analogconsultants.com/
>>
>> "gmail" domain blocked because of excessive spam.
>> Use another domain or send PM.
>
> In the UK..... I had the recent pleasure of a tour of the facilities at
> sti-limited.com. Amazing place, esp. the 127K components p/hr pick
> &place.Can do down to 1-005 parts- so long as you can see them to load the
> machine lol.
> Ultra impressive bga rework area ( fixing track errors under the BGA.) with
> a 'sandwich' pcb.Not cheap tho, as most of their work is to Mil/aerospace
> specs, so they have leaded as well as ROHS/lead free lines.
>

Thanks for the hint. I will have a super-tiny placement project coming
up a little over a year from now so I bookmarked them in case we can't
find a provider in the US. Not sure how the situation is now but last
time (late 90's) we could not find anyone who'd offer placement accuracy
to with a few micrometers. So we had to build our own stuff and do it.
Don't really want to do that again.

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
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