Re: [kicad-users] Re: gerber files produced by kiCad

[Julien]

I did that, and this is the reason why I duplicated the soldermask  
because I wanted to have pads on the both side!


Thanks a lot!!

// from iPhone

Le 18 mai 09 à 01:12, Joerg  a écrit :




Julien Bayle wrote:
> thanks a lot :)
> it is very clear to understand.
> I exported those layers for the 1st pcb of my project.
>

Just one more comment: It pays to take a real good look at all your
Gerbers with a gerber viewer. This usually makes it obvious what
function a certain file has regardless of how cryptic its name is. It
also catches bugs.

--
Regards, Joerg

http://www.analogconsultants.com/

[kicad-users] Re: gerber files produced by kiCad

[Joerg]

Julien Bayle wrote:
> thanks a lot :)
> it is very clear to understand.
> I exported those layers for the 1st pcb of my project.
> 

Just one more comment: It pays to take a real good look at all your 
Gerbers with a gerber viewer. This usually makes it obvious what 
function a certain file has regardless of how cryptic its name is. It 
also catches bugs.

-- 
Regards, Joerg

http://www.analogconsultants.com/

Re: [kicad-users] Re: gerber files produced by kiCad

[Dave - WB6DHW]

Julien Bayle wrote:
> the "real" question is :
> 
> what is the differnce between soldcomp& maskcomp ???
> 
> 
> 
> 
   Maskcomp is the solder mask layer.  Soldcomp is the solder paste 
layer.  It is used to make a stencil to apply solder paste.

Dave - WB6DHW

[kicad-users] Re: gerber files produced by kiCad

[Julien Bayle]

thanks a lot :)
it is very clear to understand.
I exported those layers for the 1st pcb of my project.

I'm going to post another question about freerouting.net and native autorouter 
in kicad :)

talks soon
julien

--- In kicad-users@yahoogroups.com, "gharlandau"  wrote:
>
> Hopefully the following details will provide some additional clarification 
> about the differing natures and roles of the solder mask and paste mask 
> layers. 
> 
> An example of where details on a solder mask layer and (associated) paste 
> mask layer would *not* be the same involves (surface mount) pads which form 
> part of an edge connector. (It is not uncommon for such pads to be gold 
> plated (or more accurately, to normally have a very thin layer of gold on top 
> of a thicker layer of tin), but that is another story.)
> 
> Each such pad should be "exposed" on the solder mask layer (for the 
> particular solder mask layer which is on the same side of the PCB as the 
> particular (copper) layer that the pad concerned is located on), so that when 
> a connector is actually mated with the associated edge connector, each of the 
> pads concerned is not prevented from making electrical contact with the 
> appropriate pin within that mating connector.
> 
> On the other hand, each such pad should *not* be "exposed" on the paste mask 
> layer (for the particular paste mask layer which is on the same side of the 
> PCB as the particular (copper) layer that the pad concerned is located on). 
> When solder paste is applied to a PCB (prior to actually installing 
> components on it), such pads should *not* have any solder paste deposited on 
> top of them -- because those pads are being provided to make contact with the 
> pins within a connector which is mated with the associated edge connector, 
> and as such, applying any solder paste to such pads would not be appropriate.
> 
> Vias are similar to pads in that it is appropriate to specify appropriate 
> details for the solder mask layers. But unlike pads though, vias are never 
> "present" on either of the paste mask layers. The purpose of the paste mask 
> layers is to control where solder paste is applied to PCBs, and as vias are 
> provided to interconnect different copper layers, it is never appropriate to 
> apply any solder paste to any of them.
> 
> Regards,
> Geoff.
> 
> 
> --- In kicad-users@yahoogroups.com, Pedro Martin wrote:
> >
> > Hi,
> > 
> > See pcbnew manual, chapter 5.
> > Mask: keep out varnish covering. To prevent varnish (or "mask")
> > covering of the pads.
> > Soldp: solder paste allow on smd components. Used to create screens
> > and stencils to applicate solder paste.
> > 
> > Not exactly but almost, one is the negative of the other one.
> > 
> > Pedro.
> > 
> > > the "real" question is :
> > > 
> > > what is the differnce between soldcomp& maskcomp ???
> > > 
> > > 
> > > 
> > > --- In kicad-users@yahoogroups.com, "Julien Bayle" wrote:
> > > >
> > > > hi all experts,
> > > > 
> > > > I'm inside a big project:
> > > > http://www.julienbayle.net/diy/protodeck/
> > > > 
> > > > I finished one of the PCBs it requires and I'm very close to
> > > > order it from BatchPCB.
> > > > But I have some doubts with the gerber files.
> > > > 
> > > > So, as usual, I read again the nice pcbnew.pdf, but some doubts
> > > > remain.
> > > > 
> > > > Can we check together I'm ok ??
> > > > 
> > > > xx.copper.pho => all the "copper" for the bottom face (if
> > > > component are on top face ..)
> > > > .cmp.pho => all the "copper" for the top face (if component
> > > > are on top face ..)
> > > > .silkscmp.pho => silkscreen ... ok
> > > > .silkscu.pho => silkscreen ... ok
> > > > .soldpcmp.pho => what is it exactly  ???
> > > > .soldpcu.pho => what is it exactly  ???
> > > > .maskcmp.pho => what is it exactly?   is it soldermask ?
> > > > i.e the place where the protection resin won't be ?
> > > > .maskcu.pho => what is it exactly?   is it soldermask ? i.e
> > > > the place where the protection resin won't be ?
> > > > 
> > > > I'd like to make the last check before to order.
> > > > 
> > > > help would be appreciated.
> > > > 
> > > > Julien
>

[kicad-users] Re: gerber files produced by kiCad

[gharlandau]

Hopefully the following details will provide some additional clarification 
about the differing natures and roles of the solder mask and paste mask layers. 

An example of where details on a solder mask layer and (associated) paste mask 
layer would *not* be the same involves (surface mount) pads which form part of 
an edge connector. (It is not uncommon for such pads to be gold plated (or more 
accurately, to normally have a very thin layer of gold on top of a thicker 
layer of tin), but that is another story.)

Each such pad should be "exposed" on the solder mask layer (for the particular 
solder mask layer which is on the same side of the PCB as the particular 
(copper) layer that the pad concerned is located on), so that when a connector 
is actually mated with the associated edge connector, each of the pads 
concerned is not prevented from making electrical contact with the appropriate 
pin within that mating connector.

On the other hand, each such pad should *not* be "exposed" on the paste mask 
layer (for the particular paste mask layer which is on the same side of the PCB 
as the particular (copper) layer that the pad concerned is located on). When 
solder paste is applied to a PCB (prior to actually installing components on 
it), such pads should *not* have any solder paste deposited on top of them -- 
because those pads are being provided to make contact with the pins within a 
connector which is mated with the associated edge connector, and as such, 
applying any solder paste to such pads would not be appropriate.

Vias are similar to pads in that it is appropriate to specify appropriate 
details for the solder mask layers. But unlike pads though, vias are never 
"present" on either of the paste mask layers. The purpose of the paste mask 
layers is to control where solder paste is applied to PCBs, and as vias are 
provided to interconnect different copper layers, it is never appropriate to 
apply any solder paste to any of them.

Regards,
Geoff.


--- In kicad-users@yahoogroups.com, Pedro Martin wrote:
>
> Hi,
> 
> See pcbnew manual, chapter 5.
> Mask: keep out varnish covering. To prevent varnish (or "mask")
> covering of the pads.
> Soldp: solder paste allow on smd components. Used to create screens
> and stencils to applicate solder paste.
> 
> Not exactly but almost, one is the negative of the other one.
> 
> Pedro.
> 
> > the "real" question is :
> > 
> > what is the differnce between soldcomp& maskcomp ???
> > 
> > 
> > 
> > --- In kicad-users@yahoogroups.com, "Julien Bayle" wrote:
> > >
> > > hi all experts,
> > > 
> > > I'm inside a big project:
> > > http://www.julienbayle.net/diy/protodeck/
> > > 
> > > I finished one of the PCBs it requires and I'm very close to
> > > order it from BatchPCB.
> > > But I have some doubts with the gerber files.
> > > 
> > > So, as usual, I read again the nice pcbnew.pdf, but some doubts
> > > remain.
> > > 
> > > Can we check together I'm ok ??
> > > 
> > > xx.copper.pho => all the "copper" for the bottom face (if
> > > component are on top face ..)
> > > .cmp.pho => all the "copper" for the top face (if component
> > > are on top face ..)
> > > .silkscmp.pho => silkscreen ... ok
> > > .silkscu.pho => silkscreen ... ok
> > > .soldpcmp.pho => what is it exactly  ???
> > > .soldpcu.pho => what is it exactly  ???
> > > .maskcmp.pho => what is it exactly?   is it soldermask ?
> > > i.e the place where the protection resin won't be ?
> > > .maskcu.pho => what is it exactly?   is it soldermask ? i.e
> > > the place where the protection resin won't be ?
> > > 
> > > I'd like to make the last check before to order.
> > > 
> > > help would be appreciated.
> > > 
> > > Julien

Re: [kicad-users] Re: gerber files produced by kiCad

[Pedro Martin]

Hi,

See pcbnew manual, chapter 5.
Mask: keep out varnish covering. To prevent varnish (or "mask") covering of 
the pads.
Soldp: solder paste allow on smd components. Used to create screens and 
stencils to applicate solder paste.

Not exactly but almost, one is the negative of the other one.

Pedro.

> the "real" question is :
> 
> what is the differnce between soldcomp& maskcomp ???
> 
> 
> 
> 
> --- In kicad-users@yahoogroups.com, "Julien Bayle"  wrote:
> >
> > hi all experts,
> > 
> > I'm inside a big project: http://www.julienbayle.net/diy/protodeck/
> > 
> > I finished one of the PCBs it requires and I'm very close to order it
> > from BatchPCB.
> > But I have some doubts with the gerber files.
> > 
> > So, as usual, I read again the nice pcbnew.pdf, but some doubts remain.
> > 
> > Can we check together I'm ok ??
> > 
> > xx.copper.pho => all the "copper" for the bottom face (if component
> > are on top face ..)
> > .cmp.pho => all the "copper" for the top face (if component are on
> > top face ..)
> > .silkscmp.pho => silkscreen ... ok
> > .silkscu.pho => silkscreen ... ok
> > .soldpcmp.pho => what is it exactly  ???
> > .soldpcu.pho => what is it exactly  ???
> > .maskcmp.pho => what is it exactly?   is it soldermask ? i.e the
> > place where the protection resin won't be ?
> > .maskcu.pho => what is it exactly?   is it soldermask ? i.e the
> > place where the protection resin won't be ?
> > 
> > I'd like to make the last check before to order.
> > 
> > help would be appreciated.
> > 
> > Julien
> >
> 
> 
>

[kicad-users] Re: gerber files produced by kiCad

[Julien Bayle]

the "real" question is :

what is the differnce between soldcomp& maskcomp ???




--- In kicad-users@yahoogroups.com, "Julien Bayle"  wrote:
>
> hi all experts,
> 
> I'm inside a big project: http://www.julienbayle.net/diy/protodeck/
> 
> I finished one of the PCBs it requires and I'm very close to order it
> from BatchPCB.
> But I have some doubts with the gerber files.
> 
> So, as usual, I read again the nice pcbnew.pdf, but some doubts remain.
> 
> Can we check together I'm ok ??
> 
> xx.copper.pho => all the "copper" for the bottom face (if component
> are on top face ..)
> .cmp.pho => all the "copper" for the top face (if component are on
> top face ..)
> .silkscmp.pho => silkscreen ... ok
> .silkscu.pho => silkscreen ... ok
> .soldpcmp.pho => what is it exactly  ???
> .soldpcu.pho => what is it exactly  ???
> .maskcmp.pho => what is it exactly?   is it soldermask ? i.e the
> place where the protection resin won't be ?
> .maskcu.pho => what is it exactly?   is it soldermask ? i.e the
> place where the protection resin won't be ?
> 
> I'd like to make the last check before to order.
> 
> help would be appreciated.
> 
> Julien
>