Morph question

[So not a Guru]

Why does morph cut right thru my "from" and "to" surfaces? I've never tried this path using surfaces (actually solids in this case), am I wrong thinking that the path is supposed to be contained within the from-to surfaces?

Darn it, I thought I could attach the MC file, but it is apparently too big. In the picture, my from-to surfaces are the vertical sides of the twisted trough, and my drive surface is the bottom of the trough.

[So not a Guru]

I've uploaded this to my dropbox here:

https://www.dropbox.com/sh/nn9fg2hlmhecquy/AAAWgYQNPe6J0llkSuFNHdFla?dl=0

[Jasond0530]

Change your from and to surfaces to the two .03 rads and change your collision control to the two walls!

turned your roughing off to get file smaller

MORPH ISSUE jd.mcam

[So not a Guru]

34 minutes ago, Jasond0530 said:

Change your from and to surfaces to the two .03 rads and change your collision control to the two walls!

Thanks, I don't have 2019 yet here, so I can't open your file, but That worked better. I changed my stepover & rough strategy. The path now doesn't reach the bottom of the trough , without using a negative value in the "leave stock on surface" field.

[So not a Guru]

Got it working. I had created a 2nd collision avoidance strategy for the check surfaces, instead of switching the 1st from drive to check surfs.

[JoshC]

Morph will try to Drive the center of cutter on what you are morphing from/to but you can change that through a setting called margins. First the "Type" found on cut paramaters must be set to "Full, Start and end on exact edges" which you already have set, Then from there you can hit the + next to cut parameters and you should see a margins page. You can either Add the cutter radii to those start and end values or can check the include cutter radii button which will then shift what the toolpath is morphing from/to by the radii of the tool. I hope this makes sense. Pic below shows the check box that should give you what you need. 

[huskermcdoogle]

I have found you want the from and to surfaces or curves on the edges of the pattern surface.  If they aren't one and the same, you won't get the results you are looking for.  If you are looking for containment, then make sure to use 2d containment or collision control inside those boundaries.