In an incorrectly calibrated diameter bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem system, the computer thinks the bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem[?] is smaller than it actually bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem, so the cutting blade is not bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem by the computer to bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem sever the stem through. The bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem believes it has already completely bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem the stem and the cutting bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem therefore retracts back to its bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem position ready for the next bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem. This leaves a bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem severed log which hangs and shears off or bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem to be re-cut. If the stem is not bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem held bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem the harvesting head by the bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem knives, the stem can bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem[?] a little in the harvesting head and the cutting blade will not bladecompletelycomputercutcuttingdropinstructedintoismeasurementneedsoriginalpartiallysecurelyseveredstem sever the stem.