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Posted by Mark Rand on March 29, 2008, 8:18 pm
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On Sat, 29 Mar 2008 22:53:34 GMT, John Stevenson
>On Sat, 29 Mar 2008 22:33:06 -0000, "Ian Phillips"
>
>>>>
>>>> I have thought of making an expanding mandrel which is somehow activated
>>>> through the headstock spindle but it seems overcomplicated
>>>>
>>>>
>>>> Thanks in advance for any suggestions
>>>>
>>>> Ian Phillips
>>>>
>>>>
>>>>
>>>>
>>>> llllllll
>>>> llllllll
>>>> lllllllllllllllllllllllllllllllllllllllllllllllll
>>>> llll
>>>> llll
>>>> llll
>>>> llll
>>>> llll
>>>> lllllllllllllllllllllllllllllllllllllllllllllllll
>>>> llllllll
>>>> llllllll
>>>
>>> Can you make soft jaws?
>>>
>>> Do the hole and that side of the flange.
>>>
>>> Flip it over and grip from the inside with the soft jaws; do the outside.
>>
>>
>>
>>Soft jaws sounds a good idea but I don't have any.
>>
>>Ian
>>
>Do you have any old jaws for your chuck ?
>If so you can weld some lumps of mild steel on and machine those down.
>
>Sounds horrible and it is <g> but it works.
Why not do _all_ the turning and boring with the over-length stock held in the
chuck. Then part off 20 thou over length. clamp the parted off part to a
faceplate using the top-hat rim and face the parted off end to length. You
waste 1/2" of stock per part. Use it to make washers with :-)
This does not seem to be a complicated part.
I would cheat and do the last operation on the surface grinder or shaper, but
turning will work just as well.
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>>> I have thought of making an expanding mandrel which is somehow activated
>>> through the headstock spindle but it seems overcomplicated
>>>
>>>
>>> Thanks in advance for any suggestions
>>>
>>> Ian Phillips
>>>
>>>
>>>
>>>
>>> llllllll
>>> llllllll
>>> lllllllllllllllllllllllllllllllllllllllllllllllll
>>> llll
>>> llll
>>> llll
>>> llll
>>> llll
>>> lllllllllllllllllllllllllllllllllllllllllllllllll
>>> llllllll
>>> llllllll