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The Forerunner of Mandrel Saving

Penpal

Penpal

Grand Master
Joined
May 26, 2013
Posts
25,342
Location
Canberra AUSTRALIA
First Name
Peter
Over twenty eight years ago I aquired an extra Burnerd Chuck for my Hercus it became surplus as I have five Chucks for the metal lathe, cut an adapter to fit the Hercus threat outside and 1 inch 10 threads inside did not like the knuckle buster chuck jaws made a front cover to fit over the jaws held in place by a washer and pressure on the Mandrel. My mandrel was made using a machine bolt and my design Mandrel saver from a removable centre live centre with a parrallel shaft with a close fit to the mandrel.

Some guy in America got in touch asked if I wanted to go in with him making versions of my Mandrel Saver I declined sent him measurements etc.Use a collet chuck and another type of mandrel saver I designed and had made in hard steel.

Peter.:thumbs::thumbs:
 

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Jim

Jim

Grand Master
Joined
Oct 19, 2011
Posts
15,617
Some excellent blast from the past you are showing us Peter .. :thumbs:
 
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