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54 Draw bar 2007/10/01 |
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1. I've purchased a straight collet milling holder which has a
MT3 taper. It came without a draw bar, so I made one as shown below. |
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2. The draw bar threads are inch pitch and were cut on the lathe. The
material is mild steel. |
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3. The draw bar consists of three parts because I didn't have long
enough material on hand. Also, it is difficult to machine a complete hex length. |
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4. The head of the bolt should be formed as shown because the
bolt is hit with a hammer to remove the holder from the
milling machine. |
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5. The three parts are assembled with LOCTITE No.271. |
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6. The finished draw bar. |
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