Aperture too thin

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1

Trying to get my first upload done, but having a problem I can’t solve, so, I turn to the experts here. I have the “Aperture too thin” error. These files were created with FreePCB. Any help is much appreciated. More information below. Let me know if you need more info to help diagnose the issue.

Thanks!

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Project Upload Name: PJ_12-05-07

X Max: 1.6574 X Min: -0.0748

Y Max: 0.3661 Y Min: -0.5

PCB Size: 1.50025842 inches square

There were errors in the Top Layer File. Please address them and resubmit the zip file. Details bellow:

Checked Aperture 10 (0.005000): Failed

Error - Aperture too thin

Checked Aperture 11 (0.098425): Passed

Checked Aperture 12 (0.088000): Passed

Checked Aperture 13 (0.010000): Passed

2

Neophyte:
Trying to get my first upload done, but having a problem I can’t solve, so, I turn to the experts here. I have the “Aperture too thin” error. These files were created with FreePCB. Any help is much appreciated.

Greetings Neophyte,

Please review [this thread and see if your case is covered.

If not, come back with new questions.

Comments Welcome!](Eagle file SparkFun Aperature error - SparkFun Electronics Forum)

3

phalanx:
This is what I do if I’m in a hurry. Just open your gerber file that contains the line giving you the error and change the 0.0050 to 0.0080. Next open the file in Viewmate and double check that everything is ok. Changing the value to 0.0080 changes the 5mil trace to 8mil.

-Bill

Thanks for the pointer on what thread to read. I followed this direction and the files now pass the bot check.

4

I had the same problem. Assuming it wasn’t a part or trace that you drew I believe that the default width for the board outline is .005 which is too thin.

To fix this I found that when you go to “Export CAM” file a box will pop up I changed all of the "5"s to "8"s which is the acceptable minimum. After that the problem went away.

5

pvm:
To fix this I found that when you go to “Export CAM” file a box will pop up I changed all of the "5"s to "8"s which is the acceptable minimum. After that the problem went away.

Greetings pvm,

While that will work, a better method is to change the

min trace width default value so that every new design

is at 8mil.

You need to locate a file called EAGLE.scr (most likely

in the SCR sub-dir, EAGLE.EXE launches from the BIN

sub-dir).

Quoting from the Cadsoft FAQ:

eagle.scr

…

This file can be used to define basic settings that

shall be valid for a newly created Schematic, Board,

or Library file. eagle.scr will be read each time you

create a new file or open a file by the File/Open

menu. It won’t be read if a file (editor window)

opens automatically by an active EAGLE project file,

for example, while starting EAGLE.

eagle.scr offers separate sections for the specific

editor windows. After the keyword BRD: follows

everything that shall be executed in the Layout editor,

SCH: stands for the Schematic editor, LBR: for the

Library editor in general, DEV:, SYM:, and PAC: for

Device, Symbol, and Package editor. Settings for

all editor windows (for example, a common

background colour) can be made in the very

beginning of the file, which means before BRD:.

What is defined in eagle.scr usually?

Pre-definition of the grid, contents of the drill, width,

size, diameter menu (SET command), any other

option of the SET command, for example, used

layers, colours and so on. In principle everything

that can be done also in the Options/Set menu in

one of the Editor windows (see also HELP SET).

Comments Welcome!