I pop the shell off one of Dana’s Atlas SD-60Ms, remove the decoder, and clean the brush contacts, but the motor still doesn’t respond. “They ran great the last time I had ’em out,” he had told me, “but I can’t get ’em to move now. Can you take a look?”

If you’ve been into DCC for a while, you can probably guess where this is headed, but don’t shout out your answer just yet. Instead, let’s take this opportunity to explore JMRI—Java Model Railroad Interface. (more…)