Problem with gerber file dimensions

Twan Talens schrieb:

Hi, when I create gerber data and drill files I see the following in my

gerber viewer:

 

Picture link: http://www.ttalens.com/download/eagle/gerber1.JPG

Common problem when the viewer misinterprets the file format of the

drill data...

I remember I have to do some settings in the window below. But I can't

remember what settings I have to do.

 

http://www.ttalens.com/download/eagle/gerber2.JPG

For me (using SM1000 drill files) the correct settings are:

3.2/abs/leading/mm.

Tilmann

if you are using the "EXCELLON" device when generating drill data with

Eagle, you have to setup your Gerber viewer (it looks like "GC-Preview") to:

"Whole Digits: 1"

"Precision: 4"

The rest is correct

Twan Talens schrieb:

Hi, when I create gerber data and drill files I see the following in my

gerber viewer:

 

Picture link: http://www.ttalens.com/download/eagle/gerber1.JPG

 

I remember I have to do some settings in the window below. But I can't

remember what settings I have to do.

 

http://www.ttalens.com/download/eagle/gerber2.JPG

 

Best Regards

 

 

Hello Ben,

I use Excellon to generate the drill data. While importing the drill data

using GC-Prevue, I set the - Whole digit to 1 and Precision to 4. But I see

that my drill hole position are offset from where they are supposed to be.

They don't overlap with the pads in the other layers.

Also when I import the drd file , I get the message saying " Ignoring

information in the header ".  Is that how it is supposed to be. I am new to

PCB design and I apologize if my questions is very amatuer.

Thank you.

Regards,

Ashwath

"Ben" <frank.dannull@meinberg.de> wrote in message

news:gtu8s2$ui$1@cheetah.cadsoft.de...

if you are using the "EXCELLON" device when generating drill data with

Eagle, you have to setup your Gerber viewer (it looks like "GC-Preview")

to:

"Whole Digits: 1"

"Precision: 4"

 

The rest is correct

 

Twan Talens schrieb:

Hi, when I create gerber data and drill files I see the following in my

gerber viewer:

 

Picture link: http://www.ttalens.com/download/eagle/gerber1.JPG

 

I remember I have to do some settings in the window below. But I can't

remember what settings I have to do.

 

http://www.ttalens.com/download/eagle/gerber2.JPG

 

Best Regards

Normally a drill file generated by Eagle using the Excellon device has

no "header". So, GC Preview shouldn't recognize a header and ignore it...

How do the first two or three lines of your *.drd file look like (you

can use a text editor to open it) ?

When generating the drill file: is the offset for "x" and "y" in the CAM

processor set to "0" (zero) ?

Ashwath Pavithran schrieb:

Hello Ben,

 

I use Excellon to generate the drill data. While importing the drill

data using GC-Prevue, I set the - Whole digit to 1 and Precision to 4.

But I see that my drill hole position are offset from where they are

supposed to be. They don't overlap with the pads in the other layers.

 

Also when I import the drd file , I get the message saying " Ignoring

information in the header ".  Is that how it is supposed to be. I am new

to PCB design and I apologize if my questions is very amatuer.

 

Thank you.

 

Regards,

Ashwath

 

"Ben" <frank.dannull@meinberg.de> wrote in message

news:gtu8s2$ui$1@cheetah.cadsoft.de...

if you are using the "EXCELLON" device when generating drill data with

Eagle, you have to setup your Gerber viewer (it looks like

"GC-Preview") to:

"Whole Digits: 1"

"Precision: 4"

 

The rest is correct

 

Twan Talens schrieb:

Hi, when I create gerber data and drill files I see the following in

my gerber viewer:

 

Picture link: http://www.ttalens.com/download/eagle/gerber1.JPG

 

I remember I have to do some settings in the window below. But I

can't remember what settings I have to do.

 

http://www.ttalens.com/download/eagle/gerber2.JPG

 

Best Regards

Ben,

Thank you for replying.

These are the first few lines of the DRD file -

%

M48

M72

T01C0.0150

T02C0.0236

T03C0.0360

T04C0.0394

T05C0.0400

T06C0.0520

T07C0.0551

T08C0.0709

T09C0.0787

T10C0.0945

%

By default, the x and y offsets where '0' and I didnt make any changes to

them.

Is there something I need to do before I run Excellon ? Some one, on the

internet, had suggested running drillcfg.ulp? What does this do ?

Regards,

Ashwath

"Ben" <frank.dannull@meinberg.de> wrote in message

news:gu0s2a$f5$1@cheetah.cadsoft.de...

Normally a drill file generated by Eagle using the Excellon device has no

"header". So, GC Preview shouldn't recognize a header and ignore it...

How do the first two or three lines of your *.drd file look like (you can

use a text editor to open it) ?

 

When generating the drill file: is the offset for "x" and "y" in the CAM

processor set to "0" (zero) ?

 

 

Ashwath Pavithran schrieb:

Hello Ben,

 

I use Excellon to generate the drill data. While importing the drill data

using GC-Prevue, I set the - Whole digit to 1 and Precision to 4. But I

see that my drill hole position are offset from where they are supposed

to be. They don't overlap with the pads in the other layers.

 

Also when I import the drd file , I get the message saying " Ignoring

information in the header ".  Is that how it is supposed to be. I am new

to PCB design and I apologize if my questions is very amatuer.

 

Thank you.

 

Regards,

Ashwath

 

"Ben" <frank.dannull@meinberg.de> wrote in message

news:gtu8s2$ui$1@cheetah.cadsoft.de...

if you are using the "EXCELLON" device when generating drill data with

Eagle, you have to setup your Gerber viewer (it looks like "GC-Preview")

to:

"Whole Digits: 1"

"Precision: 4"

 

The rest is correct

 

Twan Talens schrieb:

Hi, when I create gerber data and drill files I see the following in my

gerber viewer:

 

Picture link: http://www.ttalens.com/download/eagle/gerber1.JPG

 

I remember I have to do some settings in the window below. But I can't

remember what settings I have to do.

 

http://www.ttalens.com/download/eagle/gerber2.JPG

 

Best Regards

the drd file seems to be correct.

Maybe your problem is related to the following topic: "Offset in CAM Output"

Did you set the option "Positive coords" when generating Gerder data ?

Ashwath Pavithran schrieb:

Ben,

 

Thank you for replying.

 

These are the first few lines of the DRD file -

 

%

M48

M72

T01C0.0150

T02C0.0236

T03C0.0360

T04C0.0394

T05C0.0400

T06C0.0520

T07C0.0551

T08C0.0709

T09C0.0787

T10C0.0945

%

 

By default, the x and y offsets where '0' and I didnt make any changes

to them.

 

Is there something I need to do before I run Excellon ? Some one, on the

internet, had suggested running drillcfg.ulp? What does this do ?

 

Regards,

Ashwath

 

"Ben" <frank.dannull@meinberg.de> wrote in message

news:gu0s2a$f5$1@cheetah.cadsoft.de...

Normally a drill file generated by Eagle using the Excellon device has

no "header". So, GC Preview shouldn't recognize a header and ignore it...

How do the first two or three lines of your *.drd file look like (you

can use a text editor to open it) ?

 

When generating the drill file: is the offset for "x" and "y" in the

CAM processor set to "0" (zero) ?

 

 

Ashwath Pavithran schrieb:

Hello Ben,

 

I use Excellon to generate the drill data. While importing the drill

data using GC-Prevue, I set the - Whole digit to 1 and Precision to

4. But I see that my drill hole position are offset from where they

are supposed to be. They don't overlap with the pads in the other

layers.

 

Also when I import the drd file , I get the message saying " Ignoring

information in the header ".  Is that how it is supposed to be. I am

new to PCB design and I apologize if my questions is very amatuer.

 

Thank you.

 

Regards,

Ashwath

 

"Ben" <frank.dannull@meinberg.de> wrote in message

news:gtu8s2$ui$1@cheetah.cadsoft.de...

if you are using the "EXCELLON" device when generating drill data

with Eagle, you have to setup your Gerber viewer (it looks like

"GC-Preview") to:

"Whole Digits: 1"

"Precision: 4"

 

The rest is correct

 

Twan Talens schrieb:

Hi, when I create gerber data and drill files I see the following

in my gerber viewer:

 

Picture link: http://www.ttalens.com/download/eagle/gerber1.JPG

 

I remember I have to do some settings in the window below. But I

can't remember what settings I have to do.

 

http://www.ttalens.com/download/eagle/gerber2.JPG

 

Best Regards

Ben,

" Positive coords" was set by default and i did not change it.

Also I had another question. Mine is a 4 layered board and I use

"gerb274x-4layer" to create the gerber files. Layer 15 and Bottom layer has

the mirror option enabled. I assume this is how it should be.

But when I import it to GC-Prevue, how do I import layer 15 and bottom in

such a way so that when I overlap them all the pads align. I apologize for

asking this question in this thread but since you are familiar with

GC-Prevue , I thought I did ask you.

Thank you.

Regards,

Ashwath

"Ben" <frank.dannull@meinberg.de> wrote in message

news:gu8s39$rn1$1@cheetah.cadsoft.de...

the drd file seems to be correct.

 

Maybe your problem is related to the following topic: "Offset in CAM

Output"

 

Did you set the option "Positive coords" when generating Gerder data ?

 

Ashwath Pavithran schrieb:

Ben,

 

Thank you for replying.

 

These are the first few lines of the DRD file -

 

%

M48

M72

T01C0.0150

T02C0.0236

T03C0.0360

T04C0.0394

T05C0.0400

T06C0.0520

T07C0.0551

T08C0.0709

T09C0.0787

T10C0.0945

%

 

By default, the x and y offsets where '0' and I didnt make any changes to

them.

 

Is there something I need to do before I run Excellon ? Some one, on the

internet, had suggested running drillcfg.ulp? What does this do ?

 

Regards,

Ashwath

 

"Ben" <frank.dannull@meinberg.de> wrote in message

news:gu0s2a$f5$1@cheetah.cadsoft.de...

Normally a drill file generated by Eagle using the Excellon device has

no "header". So, GC Preview shouldn't recognize a header and ignore

it...

How do the first two or three lines of your *.drd file look like (you

can use a text editor to open it) ?

 

When generating the drill file: is the offset for "x" and "y" in the CAM

processor set to "0" (zero) ?

 

 

Ashwath Pavithran schrieb:

Hello Ben,

 

I use Excellon to generate the drill data. While importing the drill

data using GC-Prevue, I set the - Whole digit to 1 and Precision to 4.

But I see that my drill hole position are offset from where they are

supposed to be. They don't overlap with the pads in the other layers.

 

Also when I import the drd file , I get the message saying " Ignoring

information in the header ".  Is that how it is supposed to be. I am

new to PCB design and I apologize if my questions is very amatuer.

 

Thank you.

 

Regards,

Ashwath

 

"Ben" <frank.dannull@meinberg.de> wrote in message

news:gtu8s2$ui$1@cheetah.cadsoft.de...

if you are using the "EXCELLON" device when generating drill data with

Eagle, you have to setup your Gerber viewer (it looks like

"GC-Preview") to:

"Whole Digits: 1"

"Precision: 4"

 

The rest is correct

 

Twan Talens schrieb:

Hi, when I create gerber data and drill files I see the following in

my gerber viewer:

 

Picture link: http://www.ttalens.com/download/eagle/gerber1.JPG

 

I remember I have to do some settings in the window below. But I

can't remember what settings I have to do.

 

http://www.ttalens.com/download/eagle/gerber2.JPG

 

Best Regards

Ben,

Now I find that the Drills are aligned properly with the layers associated

with the component layer. But there is an offset in the board edge between

the layers associated with components side and those associated with solder

side.

Do we need to keep the 'mirror' option enabled for layers associated with

the solder side ?

Regards,

Ashwath

"Ben" <frank.dannull@meinberg.de> wrote in message

news:gu8s39$rn1$1@cheetah.cadsoft.de...

the drd file seems to be correct.

 

Maybe your problem is related to the following topic: "Offset in CAM

Output"

 

Did you set the option "Positive coords" when generating Gerder data ?

 

Ashwath Pavithran schrieb:

Ben,

 

Thank you for replying.

 

These are the first few lines of the DRD file -

 

%

M48

M72

T01C0.0150

T02C0.0236

T03C0.0360

T04C0.0394

T05C0.0400

T06C0.0520

T07C0.0551

T08C0.0709

T09C0.0787

T10C0.0945

%

 

By default, the x and y offsets where '0' and I didnt make any changes to

them.

 

Is there something I need to do before I run Excellon ? Some one, on the

internet, had suggested running drillcfg.ulp? What does this do ?

 

Regards,

Ashwath

 

"Ben" <frank.dannull@meinberg.de> wrote in message

news:gu0s2a$f5$1@cheetah.cadsoft.de...

Normally a drill file generated by Eagle using the Excellon device has

no "header". So, GC Preview shouldn't recognize a header and ignore

it...

How do the first two or three lines of your *.drd file look like (you

can use a text editor to open it) ?

 

When generating the drill file: is the offset for "x" and "y" in the CAM

processor set to "0" (zero) ?

 

 

Ashwath Pavithran schrieb:

Hello Ben,

 

I use Excellon to generate the drill data. While importing the drill

data using GC-Prevue, I set the - Whole digit to 1 and Precision to 4.

But I see that my drill hole position are offset from where they are

supposed to be. They don't overlap with the pads in the other layers.

 

Also when I import the drd file , I get the message saying " Ignoring

information in the header ".  Is that how it is supposed to be. I am

new to PCB design and I apologize if my questions is very amatuer.

 

Thank you.

 

Regards,

Ashwath

 

"Ben" <frank.dannull@meinberg.de> wrote in message

news:gtu8s2$ui$1@cheetah.cadsoft.de...

if you are using the "EXCELLON" device when generating drill data with

Eagle, you have to setup your Gerber viewer (it looks like

"GC-Preview") to:

"Whole Digits: 1"

"Precision: 4"

 

The rest is correct

 

Twan Talens schrieb:

Hi, when I create gerber data and drill files I see the following in

my gerber viewer:

 

Picture link: http://www.ttalens.com/download/eagle/gerber1.JPG

 

I remember I have to do some settings in the window below. But I

can't remember what settings I have to do.

 

http://www.ttalens.com/download/eagle/gerber2.JPG

 

Best Regards

Ashwath Pavithran schrieb:

Ben,

 

Now I find that the Drills are aligned properly with the layers

associated with the component layer. But there is an offset in the board

edge between the layers associated with components side and those

associated with solder side.

 

Do we need to keep the 'mirror' option enabled for layers associated

with the solder side ?

 

Regards,

Ashwath

Switch off the MIRROR flags in the CAM job sections if you prefer

to have everything displayed the same.

The Mirror option is set on the one hand for historic reasons and

on the other hand for all those customers that want to print on a

foil and make their boards manually.

For a commercial board house it's no problem to mirror the gerber

output if needed.

--

Mit freundlichen Gruessen / Best regards

Richard Hammerl

CadSoft Support -- hotline@cadsoft.de

FAQ: http://www.cadsoft.de/faq.htm