To assist crew operation the steam locos at DownsSteam we have added a water level gauge to the tender. In use we found the level was sometimes difficult to discern. I tried several things which were not suitable then asked another volunteer if he could 3D print a suitable plastic ball. He was able and that is the white object in the tube floating at the top of the water. I added a knot of bronze fly wire at the base of the plastic tube so the ball wont vanish into the tender when the water is mostly used. See the PiP for the whole gauge. This photo is of 106, and 1037 has a similar arrangement. February 2025