Ultrasonic Steam Unit for Bachmann Big Hauler 4-6-0

This is a water-based ultrasonic steam generator for the Bachmann Big Hauler G scale 4-6-0 locomotive. It fits all versions of the Bachmann Big Hauler 4-6-0. It may also fit other G scale locomotives with some modification. It uses ultrasonic atomizer disks of the same type found in small USB humidifiers. It is designed to use two disks, but can also function with just one. Please see this video for assembly and installation instructions: https://youtu.be/WuOS0ThJKaY Some versions of the atomizer disks come with an 8mm diameter wick, while others come with a 10mm diameter wick. Please measure the wick to confirm which version you have, as there are two different versions of the 3D model to fit each wick size. Along with the water tank, each print includes a jig to cut the wicks to the correct length.