4 axis Trunnion Troubles

[RRICH]

   I'm trying to mill these inverted radius serrations on a trunnion with a 4 axis mill, we don't have Mill 5 axis. The last three ops with the 82 Deg. mill, it seems to be close with xyz moves in backplot and verify,

But when I post the angles, XY, seem correct but not the Z's?  Also verify is not leaving flats evenly on the part?

    Don't know if this is a 5 axis project or not?

 

  Thanks for your time

Russell

84402SolidSMALL2.Z2G

[Guest]

Pressed a bit for time but how about something like this?

 

 

 

https://drive.google.com/file/d/0Bxpg8rw9I62mMGxZaS1Kb0FDU2M/view?usp=sharing

[RRICH]

Thank you JP,  that's easy enough for those. I'll see what I can do for the 180 radius serrations, that'll take some time? 

 

Thanks again

Russell

[Guest]

Well, try this  

 

I created a base surface off of your radius lines, the I used a 3D contour

 

Then to get the rotations, I set up a Convert to 5 axis path and used the center point of the arc as the projections point

 

 

 

 

https://dl.dropboxusercontent.com/u/96758767/JP2_84402SolidSMALL2.zip

[RRICH]

   That'll work, sure appreciate the time you spend here helping folks out JP.

Thanks