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5-ax z-level finishing, help needed

Mueller-CNC
Enthusiast

5-ax z-level finishing, help needed

Mueller-CNC
Enthusiast
Enthusiast

I need some help for the attached test part. The problem is I can´ t figure out why two surfaces are not machined at all.

 

I've tried different strategies but z-level finish is the only one that can handle undercuts. 

 

Any help would be great, thanks!

 

 

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ChristopherMarion
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@Mueller-CNC 

 

First, Z level isn't the only strategy that can handle undercuts.  It may be the only strategy that has that checkbox.

 

Unfortunately, Z level does not machine shallow surfaces because it slices the model in Z increments.  Great for steep regions.  You can turn on Optimize for that issue, but not with undercuts.

 

I suggest you use Flowline.  You do need to construct a surface for FeatureCAM to work from.  This surface is a reference surface.....not a machinable surface.

 

Take a look at the attached modified FM file.  If you need more guidance on how I achieved these results, let me know.

 

 

Christopher Marion
Technical Specialist - CAM
SolidCAD - Canada





Mueller-CNC
Enthusiast
Enthusiast

Thank you very much for your help.

 

The result is okay so far.

 

I have to say I´ve tried flowline before posting this topic here but I got a different result.

Lots of unnecessary tool paths and something like that.

 

So after looking into your strategy I saw you´ve selected all the surfaces of the solid.

I´ve selected only the surfaces I wanted to finish. This thing makes it all different from yours.

 

Do you select all the surfaces for flowline in general? This info could be very useful haha.

 

Greetings

 

   

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ChristopherMarion
Advisor
Advisor

@Mueller-CNC 

 

Selecting all the solid faces, in this case, won't cause any issues.  It's situational I guess.  I usually select the entire model if I can, then perhaps limit my toolpath with a boundary (if 3 axes).

 

In this case, the created surface will limit the location of the toolpath. 

 

I figure I'd rather select way too much than miss surfaces.  Don't want model gouges.

Christopher Marion
Technical Specialist - CAM
SolidCAD - Canada