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Showing posts from November, 2016

Lathe Operations: Facing

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Facing Operations Facing is the process of removing metal from the end of a workpiece to produce a flat surface. Most often, the workpiece is cylindrical, but using a 4-jaw chuck you can face rectangular or odd-shaped work to form cubes and other non-cylindrical shapes.

When a lathe cutting tool removes metal it applies considerable tangential (i.e. lateral or sideways) force to the workpiece. To safely perform a facing operation the end of the workpiece must be positioned close to the jaws of the chuck. The workpiece should not extend more than 2-3 times its diameter from the chuck jaws unless a steady rest is used to support the free end. Cutting Speeds

If you read many books on machining you will find a lot of information about the correct cutting speed for the movement of the cutting tool in relation to the workpiece. You must consider the rotational speed of the workpiece and the movement of the tool relative to the workpiece. Basically, the softer the metal the faster the cutting. D…

Lessons of Leadership

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A CONVERSATION WITH JEB BUSH ABOUT CHALLENGES IN EDUCATION (AND GOVERNMENT)
What does it take to drive a big vision of change — at the legislative level, the policy level, or even at the local school level? In a recent Facebook Live interview with Jeb Bush, the former governor of Florida, former Republican candidate for president, and chairman of the Foundation for Excellence in Education reflected on his own experiences. He argued that the essential characteristics of effective leadership are similar in government and in education — at all levels.

In a wide-ranging conversation, in which Bush spoke of an urgent need for “dramatic change in how we educate,” he outlined five broad takeaways for leaders in both sectors:
FIVE LEADERSHIP ESSENTIALS FOR EDUCATION AND POLICY

You must have a clear vision.
You must be doggedly determined.
You have to listen.
You must have humility.
You have to stick with it. Once a bill is passed or a reform is enacted, at any level, you must keep fighting to make…