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BOMBSHELL!! ...at last!

Your new mini-lathe...

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JasonB30/09/2020 19:03:53
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A big bore does not have to mean you need to take big cuts but it can be handy to simply face or work on the end of a larger dia piece of stock then whip it out and saw off before finishing the back without the waste of needing a lump to hold in the chuck so keeps the number of bar ends to a minimum. Or simply mean less stick out when working on longer parts.

I hope you are all ready for the flood of posts from people having problems parting off these larger bars in their lighweight machinesdevil

Mike Poole30/09/2020 19:13:12
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The job is sure to come along along that is too big for whatever bore you have, a fixed steady can be very useful and for those of us with a small bore Myford it is near essential. It’s worth getting familiar with using a steady before the job comes along that needs it.

Mike

not done it yet30/09/2020 21:53:19
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I’m with Mike on this one. My spindle will just pass 26mm and so a one inch bar will just go through - if straight. It’s only working on the end that is a problem - usually got over with centre support and a small area turned (depending on the bar) and then resort to the fixed steady. Shifting the steady is likely as good as a 3 jaw (for concentricity) or setting up with a 4 jaw?

ega01/10/2020 17:14:19
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To be useful a 38mm bore would require something like a (heavy) 8" 3J chuck.

Michael Gilligan01/10/2020 21:05:02
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Posted by ega on 01/10/2020 17:14:19:

To be useful a 38mm bore would require something like a (heavy) 8" 3J chuck.

.

Not for my purposes [see previous page]
... and if you did use such a thing, it would probably end-up destroying the head casting.

MichaelG.

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