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need help on cam for a simple part :)

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johnptc314159
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need help on cam for a simple part :)

i have a attached a sphere on a shaft in fd3 format.. I would like to machine the spherical portion.  shaft is immaterial except that its easy to hold in a collet.

 

i need help choosing the turning tools as well as setting up the machining sequence.

 

i tried a couple of different approaches.... the all seem to split the sphere in to front and  back halves.  It seems that a circular insert could cut the whole thing .... however any setup that would run on a 2 axis lathe would be most welcome.   one or more tools is fine. i would like to get a decent finish at the equator.

 

 

many thanks john

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i tried this attached f3d but i get a ,75 inch flat at the north pole after machining.  doesn't appear in the simulation 😞

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the north pole is not the problem....i will post a different model

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