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| centre a boring bar ? |
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| j45on:
I have just bought a small set of carbide insert tools and I'm a bit confused about the boring bar I presume the rake angle is normal but how do I centre it ? |
| AdeV:
The corner which will contact the work piece should contact on the exact centre line; i.e. much of the bar will be above the centre line. I'm glad you posted that photo, as I'm planning to buy some of those myself this week, ready for some boring next week :) |
| j45on:
Cheers AdeV :thumbup: It seems a bit of a silly question in hindsight ::) |
| John Rudd:
You dont need to centre it.......... If the hole you drillled is smaller than the overall dia of the boring bar you may find that the bottom of the bb fouls at the entrance of the hole..in that case you raise the bb above the centre line... |
| winklmj:
Center it just like any other lathe bit. Use a small scale (I use a feeler gauge) trapped between the pointy end of the bit and a piece of round stock chucked in the lathe. |
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