Unable to Sweep - Error 85007

[bmc60]

I am trying to draw a screw in 3D but I am unable to sweep around my helix path and it says error85007 in response. In another forum post I saw someone fixed this by using 'AUDIT' but whenever I try this is says zero errors fixed. 

Please can someone help? 

Thanks

[Kent1Cooper · Accepted solution]

I tried increasing the turn height, and was able to Sweep that.  Could it be that it doesn't like the fact that your shape would need to overlap itself on adjacent passes?  If you need that turn height for thread pitch, maybe you can redefine the swept Polyline so that its "height" as swept doesn't exceed the Helix's turn height.