This is a concept sketch for a rotating base for gunpla or other figures. It features a 3d printed body housing a synchronous motor that plugs into the wall, allowing for constant rotational speed with a load. I haven't been able to make this because I didn't buy any of the necessary components and I wasn't sure about plugging a circuit directly into the wall. Will definitely be built in the future once I am confident the components will function.
Update August 2025: I was able to salvage a synchronous motor from a barber pole I found on the street! The only issue is the the 60RPM which is way too fast for the application. If I want to use this in my project, I have to do a speed reduction using gears. The ideal RPM would be 5, so through calculations, I found I need a 12:1 ratio. Before I discovered the world of compound gear trains, I planned to do 72 and 6 teeth gears. I then realized I could use compound gear ratios to get the ideal ratio with reasonably sized gears.Â
The two gears on right axle are attached to each other. The 8-tooth gear on left is driven by motor and the gear above it will connect to and rotate the base at the calculated 5 RPM