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5 Axis Curve on 4 Axis rotary


Sandybar
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I know im missing somthing really simple but for the light of me can't get my head around it.

 

I projected a curve onto a 2" diameter cylinder surface.

 

Using 5 axis curve Classic, using the 3 D curves in cut pattern, I mills the top just fine and also does the same pattern 180 degrees from the top. I only want to mill the top.

 

Tool axis control is surface cylinder.

 

Any help would be appreciated.

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When you project onto a cylinder surface there 2 surfaces that get the projection

 

You could split the cylinder, then either turn off a level that has the 2nd part of the cylinder or blank it, then project onto surface

 

If you think about it, when you project onto a cylinder that is a single surface, there are 2 projections that are possible and that is what you're seeing happen

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under "Cut Pattern" there's a "Projection"  at the bottom of the screen. Change that from Normal to Plane, to Normal to Surface, and set the value very small (0.001" if you already projected your 3d curves onto the surface).  the problem is like JP said, both surfaced are getting your pojection.  The Normal to Surface projection distance can stop the toolpath from 'finding' that second surface.  If no toolpath forms, make your projection distance higher, like 0.005" and so forth

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