Fusion 360 Face Grooving Problem

[info99H4D]

Once again it appears that fusion is coming up with new and creative ways of scrapping parts.  Can someone please explain the following tool path?

In the above screen shot you can see that the initial cut into the material cuts into the finished part and I'm not sure why this is happening.

I know that it does this if the outer radius is set to the outer edge of the face groove.  It defaulted to stock OD but this tries to cut the OD as well which I don't want it to do.  If I change the outer radius to model OD it doesn't do it.  Is this a bug in fusion?

I have a non disclosure agreement with my customer but can email the file over if required.

[seth.madore]

Could you email me the file?
seth dot madore at autodesk dot com

Please reference this forum thread so I follow the context

[daniel.pacific]

Hm. From what I can see on the screenshot there are a few things that might cause the toolpath to violate the model.

-Blue shape is the Spun Profile and looks like it did not captured a valid shape. (In Set-up you can check Use Spun Profile)

-The extensions/Leads (Green Parts of the Toolpath) look fairly erratic which could be a containment issue (Front containment might be set to a improper section, I would set it to Stock front/Model Front)

-That toolpath cutting move that makes a 90 degree and doesn't follow the angle (Blue Parts of the Toolpath) wouldn't generate if there was not an issue with the shape being passed to the kernel (See Spun Profile option)

-Lastly, we have begun work to rebuild the grooving strategies behind the scenes, but if you use Profile Roughing/Finishing with a groove tool you might get better results for the time being. 

[info99H4D]

Hi, thanks for your input.

The spun profile has been checked in the setup.  There are other features on the part that required this.

If I use stock or model front the problem doesn't appear to reoccur so I will try to use that in the future.  I'll give the profile roughing / finishing a go later in the week and see how I get on.

Regards,

Sam

[matthewM5R6M]

Seconded, I needed to do a single face groove today.  Why does single groove not support face grooving?  I'd imagine I could use single groove to do DIN 509 undercuts on shafts using an angled tool too, but if I could just get it to do a plain face groove!!!!!!

[matthewM5R6M]

P.s. I also found out you can't delete a post you make when you accidentally put it on the wrong thread. 

[akash.kamoolkar]

@matthewM5R6M you can use the new groove finishing strategy to machine single grooves now (the legacy groove strategy was not able to do that, which was one reason why we have a separate single groove strategy).

Regards,

[matthewM5R6M]

I was trying to do a single groove, I don't need finishing passes, i.e. take a 4mm face groove tool and plunge straight in once to complete the groove.