(...) Nice! With regard to the drive wheels, can you somehow include a vertical wheel (free-wheeling) resting on top of the rails, to take most of the weight? ROSCO (23 years ago, 12-Nov-01, to lugnet.org.ca.rtltoronto, lugnet.trains)
(...) Thanks. Yes, adding a wheel that runs on top of the rail to support the weight is what I'd like to do. The problem is keeping things compact enough that it can still negotiate the corners. Infact it might be possible to drop one pair of drive (...) (23 years ago, 12-Nov-01, to lugnet.org.ca.rtltoronto, lugnet.trains)