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Mandrel saver, my version (another of my silly ideas) or has it already been done?

21William

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Looking at your design I think it can be simplified for use with a standard mandrel. All you would need is say a short length of say 3/4" bar bored out to suit your mandrel with a countersink at the end to fit a standard live centre. Would that work? I have some 3/4" alloy bar if anyone wants to give it a try, I could knock one up? The only close size reamer I have though is 1/4".
 

Grump

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I wouldn't recommend alloy bar William, unless it's a very tuff alloy. Steel can wear and bent quick enuf init.
Short lengths would encourage whip IMO, dunno fr sure, never been stupid enuf to try it nor had the need.
The author of this idea was doing it from boredom more than necessity.
 

21William

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Steel would be good Grumps but I'm partly thinking of the postage myboy. I don't mind making one up for someone else to try as I've not yet got all the bits I need.
 

Grump

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Steel would be good Grumps but I'm partly thinking of the postage myboy. I don't mind making one up for someone else to try as I've not yet got all the bits I need.

Go to frecycle, dump or back of your pc shop and get the rods from old printers, they are great for lathe work and making this sort of thing init?
I do.
 
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