newbie question about making custom SMD pad sizes

T Rueth wrote:

I'm brand new to Eagle. I've created several packages so far, mostly

by copying existing packages and modifying them. I'm now trying to

create another package, but none of the selectable SMD pad sizes are

even close to the pad size I need. How do I create custom SMD pads

sizes??

If you wish to change the sizes of all the selectable sizes displayed with

CHANGE/SMD or from the toolbar above the editor area, you can.

First, test the following manually so you understand what is happening. Then

you can place the command string  into the file eagle.scr and each time you

open a package the values will be yours.

Select the desired grid units that match the units you will be using. Lets

practice it all from the command line and assume MIL

In the command line type the following lines

grid mil

set smd_menu 10 10 25 25

Now check what you have avaiable to you. Two sizes that match what you keyed

10x10 and 25x25

To get back the system defaults enter into the command line

set smd_menu

grid last

Check that the originals have returned..'grid last' was only required to

return the units to what they were before and likely what you viewed the

previous default values in.

So now you understand it can all be done.

Next open up eagle.scr which is found in the .scr folder

Locate the section that starts PAC:

Insert a line that descibes the SMD sizes you want as you typed earlier

set smd_menu 10 10 25 25

note that you will need to type sizes for the appropriate unit of

measurement. By 'default' Eagle is inches

You could add a line after 'grid default on' that changes to your desired

ubit first

e.g.

Grid Default On;

Grid MIL;

Set  SMD_MENU 10 10 25 25  etc.................;

Save the file and test it by simply running the script file from within the

package editor.

All the best

Warren

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I just hit this problem (actually trying to shrink some pads on an MCU7428 since my laser printer can't render them as separate when I tick "black" in the print dialog).  I tried warren's tip very useful, then I accidentally clicked in the pop=up menu (Eagle 7.1) and found you can edit the currently selected setting directly (click on the value, then delete old value, type in new one).

Ray

I just hit this problem (actually trying to shrink some pads on an MCU7428 since my laser printer can't render them as separate when I tick "black" in the print dialog).  I tried warren's tip very useful, then I accidentally clicked in the pop=up menu (Eagle 7.1) and found you can edit the currently selected setting directly (click on the value, then delete old value, type in new one).

Ray