Adaptation of an stl file found online but too weak. The cylinders on top kept breaking. I modified the stl file in 3mf with Fusion 360. With BambuStudio I reinforced both the base and the cylinders by placing 6 walls instead of two and a 30% infill instead of 15%. I used a generic Petg filament with preset 0.20 Standard @BBL A1 and nozzle temperature at 255° and 70° for the plate.