Joe, Wow that thing smokes like a champ! Very nice! And it runs quite smooth! That's interesting our engines behaved in a similar way. I can't say I'm too surprised though, these old engines didn't have speed regulation at all. I totally agree mine needs an ERR cruise real bad! I'm just holding off until I can resolve the bucking.
John, you may know since you're an ERR dealer... the Lionel speed regulation systems use an optical tachometer on the motor to monitor speed for regulation. But the ERR cruise M uses the back EMF of the motor instead. Back EMF is a great way to do that! My only concern is the cruise M only has 2 settings for the motor's internal resistance. I'm confused how the IR can only have a high and low setting though... because usually when back EMF is used the IR must be compensated for very accurately or the resulting RPM will be drastically off. Maybe the answer is 10% error in speed just doesn't matter since these are toys. I was curious what your thoughts were on this.
And yeah i think you're right, appropriate shims would likely solve the bucking problem. Has the clip on shim method worked as a permanent solution for you? I'm a little concerned they would just disappear after a few hours of use
Thanks for your help!
