Bed leveling ring

thingiverse

Use the following print settings to level your bed: Place thin metal bands parallel to the bed screw axis and close to the screws on a bed print. Use an offset of around 5-7mm. A 3-4 wall thickness should provide enough support without overprinting. It's also recommended that all skirts look the same color as this helps in determining where to focus on. Since the ring is only about 2mm tall, printing multiple layers should be pretty quick.