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Cone in a groove

lemel_man

New member
First of all, I'm a newbie to SW, but I've a friend who has used it for
years, and this problem has got him stumped. Its to do with mating a
cone with the Vee in a V-block.

Specifically, I've made two parts: a cone and an anvil. The cone is
formed by revolving a cut on the end of a rectangular bar 12.7x8x60mm
resting on a 60x8mm face. The axis of the cone is a line that starts
from the mid-point of a lower 8mm edge, in a plane parallel to the
60x12.7mm sides, at an angle to the bottom 60x8mm face equal to half
the included angle of the cone. The anvil is a simple V-block,
with the included angle of the Vee (currently 90 degrees) larger than
the incuded angle of the cone (currently 32 degrees).



I want to mate the V-block to the cone so that...

1. The tip of the cone lies in the bottom of the Vee

2. The surface of the cone is tangential to both faces of the Vee

3. The 2 faces of the anvil parallel to the axis of the Vee are parallel with the 12.7x60 faces of the cone bar.



Despite the SW docs saying that tangential mates can be created between conical and flat surfaces, it just doesn't work.

I can assemble this manually, but I want SW to do it parametrically.

I'm using SW2005, my friend uses an earlier version and SW2006. Any ideas?



PS. My friend posed this problem to some colleagues using SW2006. They
said "Easy, just use tangential mates". He then asked them to
demonstrate, but they were amazed that it didn't work.
 

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