Abstract: A longarm quilting machine having a frame with an upper arm and a lower arm. A needle bar drive mechanism configured to be combined with a needle is combined with a portion of the upper arm and a bobbin hook assembly configured to be combined with a bobbin is combined with a portion of the lower arm. A needle motor is operatively combined with the needle bar drive mechanism and configured to provide torque to the needle bar drive mechanism to cause the needle to move up and down. A bobbin motor is operatively combined with the bobbin hook assembly and configured to provide torque to the bobbin hook assembly causing the bobbin to rotate beneath the needle. A controller is in communication with the needle motor and the bobbin motor to determine whether the components are synchronized and run a synchronization mode upon the occurrence of certain predetermined events.