I have plywood shelving in the garage that’s anchored into the frame of the house with lag screws. Each shelf is screwed into supporting 2x4’s. With that setup, the X1C prints did show some ringing. Because perhaps the plywood might act a bit like the head of a drum with the X1C on it, today I picked up two 80 pound pavers (23"x23") from Lowes to further dampen vibration with sheer mass. I’m running a new calibration now. I’ve seen some people , like CNC Kitchen, put additional things underneath their paver. I suppose a layer of Sorbothane sandwiched between the pavers might be something to try if I still notice ringing after this upgrade.
