Can someone please point me at the mechanical dimensions for the mounting holes on the Mega? I am designing a mount but don't have access to a board right now. I presume the dimensions could be found from the PCB design file, but I don't have Eagle (I use gEDA on Linux or OS X). Are the gerbers published someplace? Or maybe someone with Eagle can quickly bring up the board and tell me the diameter and X/Y offset relative to some index corner.
TIA,
dave
I know this is an old topic but I was searching for the same thing so I figured it would help someone else.
Looking at the mega eagle file, the point of origin is at the corner where the DC barrel is located. The edge where the analog inputs are located is treated as the x-axis and the edge where the USB, DC barrel is located is treated as the y-axis. The following are the x,y coordinates of the mounting holes. The units are given in mils(milli-inches).
(600,100)
(600,2000)
(3550,2000)
(3800,100)
-Wil
It may be an old topic, but my topic subscription e-mail was still alive. Thank you for checking and posting -- it's nice to have actual dimensions instead of my caliper measurements.
Inches = 
I've tried to convert the values to mm. Please correct me if I'm wrong:
Width: 48.26mm
PWM side: 74.92mm
Analog side: 81.28mm