Suggestions for milling tricky curves?

[sjj530]

Hi!  I'm pretty new to Fusion 360.  I've designed this small wooden box in two pieces that fit together.  I've milled out the interior, flipped it over (index pins) and milled the exterior flats and designs.  Now I'm ready to cut it away from the stock and realize I have no idea of the right approach.

The problem is these curved extensions that support the hinges.

All I can think to do is to make a silhouette of the widest edges, use a contour toolpath to mill straight down (with tabs), and then come back and mill the curves.    Or should I mill the curves first and then the silhouette?  Are there better approaches?  Is there a single toolpath that could accomplish it all?   Should I be using a ball mill on the curve?   Which toolpath?

I've included the file.    Any suggestions would be appreciated.  Thanks!

[daniel_lyall]

If it was me I would use a 3D adaptive and move the bottom hight up from the bottom of the part around 6mm, then finish with a parallel toolpath see attached example. 

[Anonymous]

You have two parts with slightly different geometry so they need individual attention, I added few sketches and duplicated few tool paths on second setup to eliminate some crashes and to complete the details.

I lost track of 4 holes where you used end mill as drill while trying to get to those sloped details so I suspended that operation.

I experimented with 3D contour, parallel and scallop, they all leave slightly raised edge at the bottom of slope and the way I got this done on other parts is to extrude face little past the actual part just to create tool path for that detail then paste posted code into main program.

End mill always stays away from edge and leaves small amount of material uncut, one other way to get closer to edge is to use very small step over amount.

[Anonymous]

Parallel leaves big ridges on vertical section, while 3D contour and ramp don't do so well on lower end.

I ended up using 3D contour, then parallel only to finish lower sections, seems like there is no tool path that makes uniform finish across entire surface but scallop seems to come closer then others.

[daniel_lyall]

@Anonymous It usually surfaces shape-dependent giving heaps off options is always good.

[sjj530]

Wow!   Thanks, guys!

Daniel - tweaking the heights helps - thanks.  

VicKosta - thanks for putting all that effort in!  I'm going to have to study all your work paths before I flag this one as resolved, but it looks really good.

[sjj530 · Accepted solution]

I'm going to label this resolved.  Both Daniel and VicKosta had solutions that addressed the problem.  I especially appreciate both respondents for downloading modified versions of the project so I could study the toolpaths in detail.

Thanks, guys!