We offer you a simplified method of manufacturing a cylindrical gear rack. It can be done with a conventional tap, picking up the thread profile in accordance with your existing gear. Before working make a simple mandrel is a steel bar with a hole, which is inserted into the tap. The tap should be to grind on the sandpaper by about half. Processing is done in the following way. Dressed in the machine workpiece is a cylindrical rod, turn on the machine, and improvised cutter is applied to a rotating workpiece. The rod is cut a full thread profile (this requires to remember the division of the nonius cross-feed), the cutter is given a longitudinal feed handwheel moves to the left (cone!). Operation recess is repeated.
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