Hello. My nephew told me lubricant solves squeaks. My studio easel knob was making a high screeching sound so I turned it hard with pliers after spraying it. The metal part broke in half. Now half of it is buried deep inside the walnut wood. I tried attaching a blob of hardening clay to twist it out. Now the clay is glued to it as well. I do not know where the send button is on this square machine.