Previously, this little loco toppled over while running.

I’d used a whitemetal driver figure that unbalanced the loco.

I have replaced the original with a 3D printed resin figure that is significantly lighter.

Click on an image for a larger version.

Although I like both drivers, I think I prefer the new one — which is just as well 🙂

With the lighter driver in place, the locomotive is now properly balanced.

I’m pleased to report that it runs very nicely and no longer derails 🙂