https://youtu.be/CFv31rYnElc "Marblevator, Simple" is more than likely the simplest Marblevator I've ever created. Consisting of only two easy to 3D print components along with a gear motor, ball bearings, battery pack and batteries, this model is, well, simple! I've included a link to the prototype 6 video which shows a 6 slotted wheel, but I've also included the 1, 2, and 3 slot wheels. Designed using Autodesk Fusion 360, sliced using Ultimaker Cura 4.12.1, and 3D printed in PLA on Ultimaker S5s.