(...) Well, I've been experimenting with macaroni bearings, and had some pretty good results. You can attach 24 & 40 tooth gears directly to the 2x2 rounds - this means the axle only has to take all the load at one small point. I haven't yet tested (...) (23 years ago, 28-Jan-02, to lugnet.trains, lugnet.technic)
(...) Another approach that doesn't require the macaroni but should be almost as good is to simply use the 2x2 rounds as strengtheners. Since they stick together with the studs and also have an axle hole down the middle, you could use them to (...) (23 years ago, 28-Jan-02, to lugnet.trains, lugnet.technic)