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A blade sharpening system is provided that includes a base, and a rod extending from the base. The blade sharpening system also includes a sharpener slidably coupled to the rod and configured to engage a generally circular blade of an agricultural implement while the generally circular blade is moun

A blade sharpening system is provided that includes a base, and a rod extending from the base. The blade sharpening system also includes a sharpener slidably coupled to the rod and configured to engage a generally circular blade of an agricultural implement while the generally circular blade is mounted on the agricultural implement. The sharpener is also configured to move along the rod to accommodate lateral variations in a profile of the generally circular blade.

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1. A blade sharpening system, comprising: a base;a rod extending from the base; anda sharpener slidably coupled to the rod and configured to engage a generally circular blade of an agricultural implement while the generally circular blade is mounted on the agricultural implement, wherein the sharpen

1. A blade sharpening system, comprising: a base;a rod extending from the base; anda sharpener slidably coupled to the rod and configured to engage a generally circular blade of an agricultural implement while the generally circular blade is mounted on the agricultural implement, wherein the sharpener is configured to move along the rod to accommodate lateral variations in a profile of the generally circular blade; comprising a biasing assembly configured to urge the sharpener toward the generally circular blade; wherein the biasing assembly comprises:a first gear rack coupled to the sharpener;a first pinion gear engaged with the first gear rack;a second pinion gear coupled to the first pinion gear; anda second gear rack engaged with the second pinion gear, wherein a weight of the second gear rack urges the sharpener toward the generally circular blade via rotation of the first and second pinion gears. 2. The blade sharpening system of claim 1, wherein the biasing assembly comprises a spring. 3. The blade sharpening system of claim 1, wherein an angle between the rod and the generally circular blade is about 30 to about 60 degrees. 4. The blade sharpening system of claim 1, wherein the sharpener comprises a grinding disc configured to sharpen an edge of the generally circular blade, and a motor configured to drive the grinding disc in rotation. 5. The blade sharpening system of claim 1, wherein the sharpener is mounted in a substantially vertical orientation. 6. The blade sharpening system of claim 1, comprising a second rod coupled to the base, wherein the sharpener is slidably coupled to the first and second rods. 7. The blade sharpening system of claim 1, comprising a movable platform secured to the base, and configured to facilitate movement of the blade sharpening system relative to the agricultural implement. 8. The blade sharpening system of claim 7, comprising a height adjustment assembly extending between the movable platform and the base, wherein the height adjustment assembly is configured to adjust a height of the sharpener relative to the generally circular blade. 9. A blade sharpening system, comprising: a base;a rod extending from the base;a sharpener slidably coupled to the rod and configured to engage a generally circular blade of an agricultural implement while the generally circular blade is mounted on the agricultural implement, wherein the sharpener is configured to move along the rod to accommodate lateral variations in a profile of the generally circular blade; anda biasing assembly having a weight configured to urge the sharpener along the rod toward the generally circular blade via vertical movement of the weight. 10. The blade sharpening system of claim 9, wherein the biasing assembly comprises: a first gear rack coupled to the sharpener;a first pinion gear engaged with the first gear rack;a second pinion gear coupled to the first pinion gear; anda second gear rack having the weight, wherein the second gear rack is engaged with the second pinion gear, and the weight urges the sharpener toward the generally circular blade via rotation of the first and second pinion gears. 11. The blade sharpening system of claim 9, wherein an angle between the rod and the generally circular blade is about 30 to about 60 degrees. 12. The blade sharpening system of claim 9, wherein the sharpener comprises a grinding disc configured to sharpen an edge of the generally circular blade, and a motor configured to drive the grinding disc in rotation. 13. The blade sharpening system of claim 9, comprising a movable platform secured to the base, and configured to facilitate movement of the blade sharpening system relative to the agricultural implement. 14. A blade sharpening system, comprising: a base;a plurality of rods extending from the base;a sharpener slidably coupled to the plurality of rod and configured to engage a generally circular blade of an agricultural implement while the generally circular blade is mounted on the agricultural implement, wherein the sharpener is configured to move along the plurality of rods to accommodate lateral variations in a profile of the generally circular blade; anda biasing assembly configured to urge the sharpener along the plurality of rods toward the generally circular blade. 15. The blade sharpening system of claim 14, wherein the biasing assembly comprises: a first gear rack coupled to the sharpener;a first pinion gear engaged with the first gear rack;a second pinion gear coupled to the first pinion gear; anda second gear rack engaged with the second pinion gear, wherein a weight of the second gear rack urges the sharpener toward the generally circular blade via rotation of the first and second pinion gears. 16. The blade sharpening system of claim 14, wherein the sharpener comprises a grinding disc configured to sharpen an edge of the generally circular blade, and a motor configured to drive the grinding disc in rotation. 17. The blade sharpening system of claim 16, wherein the motor is mounted in a substantially vertical orientation, and the grinding disc is mounted in a substantially horizontal orientation. 18. The blade sharpening system of claim 14, comprising: a movable platform secured to the base, and configured to facilitate movement of the blade sharpening system relative to the agricultural implement; anda height adjustment assembly extending between the movable platform and the base, wherein the height adjustment assembly is configured to adjust a height of the sharpener relative to the generally circular blade.