Re: Holding a cone in the lathe....

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Subject Author Date
Re: Holding a cone in the lathe.... Jim Sehr 03-11-2008
Posted by Jim Sehr on March 11, 2008, 1:59 am
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I've done it in soft chuck jaws. And it worked great. You hold a plug in
jaws then bore the taper in the front with the larger part of taper in back
of jaws . You don't need much to hold it as it cann't pull out of jaws. Bore
taper about 1/2 inch deep with the compound and face back end as stop.. And
if you need to turn part around you can bore taper in another set of jaws
with small end in jaws, then use a soft ball or washer with a 1/2 hole thru
it and drop ball or washer into id of tapered part and use a 1/2 inch
threaded rod with a nut on end of it against ball then on other end thru to
back of spindle use a washer and nut to keep part from pulling out of jaws.
Jim


>I need to hold a stainless cone while I trim and bevel it in the lathe.
> Any ideas on how to hold the cone?
>
>



Posted by Jim Wilkins on March 11, 2008, 7:42 am
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I'd press a disk that fits into the large end onto one end of a center-
drilled shaft that fits the small end. Slip the cone over it. The
shaft will keep the disk square. The driver would be a piece of wood
on a faceplate bored to take the small end of the cone. Pressure from
the tailstock should be enough to hold everything together and allow
light cuts but slip if the sheetmetal distorts and the tool digs in.
You could increase friction with rosin or XC Ski Wax or double stick
tape in the hole.

Jim Wilkins


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