So I have the board mounted onto the new chassis. It works, but the signals from the FAN8200 won't drive the 12V motors.
I put the FAN8200 into a socket so I can experiment with other methods.
I tried SS relays, etc, with no success.  Then I scoped out the signals and figured out it was PWM.
Going through the forum, I see that others are working on the same issues.
Before buying a Sabertooth H-bridge or something like it, I figured I'd ask here and not try to re-invent the wheel. (Tracks)
 
Also, gnuarm-install2.exe file seems to be currupt. It hangs during install at the same place, even on different computers.
Re-downloading didn't help.
 
Has anyone been able to adapt thier ARM SRV-1 to a base with larger motors?
Thanks,
Kerry