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Lofty,

That mandrel saver? you sent in this pic of is a huge step in the right direction it defeats enemy no 1 that is the tiny entry in the mandrel end mating with the live centre because it has a huge contact area by comparison.

Mandrel Savers these days do away with the point contact altogether and allow the mandrel to slide through, pressure is applied via the tailstock to hold the blank firmly and if used with a collett in the headstock gives another quick dimension to the equation of bending the mandrel that occurs so easily using the point to point system.

I will search for a pic now to show what I mean. Really like your device from so long ago the first time I have seen one like it.

Kind regards Peter. PS.

Found the pic of Craft Supplies US current mandrel Saver it is fitted to a no2 morse taper shaft that sits in the tail stock is hollow and a sleeve fit in the bell shape for about 25mm. The bearing in the bell shape parrallel part acts as a live centre the thrust is transferred to the mandrel this way.

<blockquote data-quote="Penpal" data-source="post: 20757" data-attributes="member: 122">Lofty,That mandrel saver? you sent in this pic of is a huge step in the right direction it defeats enemy no 1 that is the tiny entry in the mandrel end mating with the live centre because it has a huge contact area by comparison.Mandrel Savers these days do away with the point contact altogether and allow the mandrel to slide through, pressure is applied via the tailstock to hold the blank firmly and if used with a collett in the headstock gives another quick dimension to the equation of bending the mandrel that occurs so easily using the point to point system.I will search for a pic now to show what I mean. Really like your device from so long ago the first time I have seen one like it.Kind regards Peter.<img src="http://www.penturners.co.uk/images/smilies/18/goesred.gif"&nbsp; class="smilie" loading="lazy" alt=":goesred:" title="Goesred&nbsp; &nbsp; :goesred:" data-shortname=":goesred:" />&nbsp; &nbsp; &nbsp; &nbsp; PS.Found the pic of Craft Supplies US current mandrel Saver it is fitted to a no2 morse taper shaft that sits in the tail stock is hollow and a sleeve fit in the bell shape for about 25mm. The bearing in the bell shape parrallel part acts as a live centre the thrust is transferred to the mandrel this way.</blockquote>

[QUOTE="Penpal, post: 20757, member: 122"] Lofty, That mandrel saver? you sent in this pic of is a huge step in the right direction it defeats enemy no 1 that is the tiny entry in the mandrel end mating with the live centre because it has a huge contact area by comparison. Mandrel Savers these days do away with the point contact altogether and allow the mandrel to slide through, pressure is applied via the tailstock to hold the blank firmly and if used with a collett in the headstock gives another quick dimension to the equation of bending the mandrel that occurs so easily using the point to point system. I will search for a pic now to show what I mean. Really like your device from so long ago the first time I have seen one like it. Kind regards Peter.:goesred: PS. Found the pic of Craft Supplies US current mandrel Saver it is fitted to a no2 morse taper shaft that sits in the tail stock is hollow and a sleeve fit in the bell shape for about 25mm. The bearing in the bell shape parrallel part acts as a live centre the thrust is transferred to the mandrel this way. [/QUOTE]

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