Hi all,
One thing that I struggle with (and it annoyes me that I struggle given the simplicity of the task) is using bronze hollow bar to make bushes. I usually buy it in 12" (300mm) lengths from the scrap metal place when a favorable size catches my eye.
Question is, how do you maximise the use of a 300mm length of bar without cutting to size before turning down? I mean, if you chuck it with 250mm hanging out it's no good, you can't turn between centres and a fixed/travelling steady is still too close to the chuck. Once the outside is turned to the required OD you can at least cut off with a bandsaw (or whatever) and then put in the 3 jaw (4 jaw if accurate concentricity is vital) but what system do people use to turn down the OD from a length of stock without cutting extra (80mm piece to make a 30mm brush) for the chuck? There must be a simple method that people use that escapes me.
Oh BTW, I am talking about a bronze bar that's maybe 40mm in diameter.
Cheers
Simon
One thing that I struggle with (and it annoyes me that I struggle given the simplicity of the task) is using bronze hollow bar to make bushes. I usually buy it in 12" (300mm) lengths from the scrap metal place when a favorable size catches my eye.
Question is, how do you maximise the use of a 300mm length of bar without cutting to size before turning down? I mean, if you chuck it with 250mm hanging out it's no good, you can't turn between centres and a fixed/travelling steady is still too close to the chuck. Once the outside is turned to the required OD you can at least cut off with a bandsaw (or whatever) and then put in the 3 jaw (4 jaw if accurate concentricity is vital) but what system do people use to turn down the OD from a length of stock without cutting extra (80mm piece to make a 30mm brush) for the chuck? There must be a simple method that people use that escapes me.
Oh BTW, I am talking about a bronze bar that's maybe 40mm in diameter.
Cheers
Simon
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