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Brad Lisle

Helical ramp OD

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I must have had to much coffee this morning because I cannot think for the life of me. I am trying to do a Helix bore toolpath on an OD. I know I have done this toolpath a few times before but my mind is going a million miles per hour today and I can't get what I want. Simply want to select on an OD arc and tell it to use a highfeed mill to spiral ramp down to a desired Z depth without selecting surfaces.

Thank you 

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Contour with Ramp would be how I would approach this. Get lead in/out and done. I would do a full pass a depth also.

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13 minutes ago, 5th Axis CGI said:

Contour with Ramp would be how I would approach this. Get lead in/out and done. I would do a full pass a depth also.

Awesome, thank you. I already tried contour and could not find ramp option it only had 2D, 3D or 3D chamfer. I must have selected a bad chain. Got it done finally. It was driving me nuts!

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2 minutes ago, Brad Lisle said:

Awesome, thank you. I already tried contour and could not find ramp option it only had 2D, 3D or 3D chamfer. I must have selected a bad chain. Got it done finally. It was driving me nuts!

Well most people don't realize that flowline on a cylinder will do the same thing, but not give the full cut at the bottom depth. I have roughed Chamfers and diameters of big threaded spuds this way then come back and do a contour on the bottom to get the full cut. Then take a boring bar reversed to make a good round OD and then threadmill. I am talking 6" and 8" diameter threaded bosses on some 4-20 ton parts.

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