roughing surfaces or extending for toolpath

[terry5357]

Is there a way to extend the cut area off of a surface so that the cutter cuts outside of the surface so that the tool does not just cut up to the surface edge and thats it. I've tried creating extended surfaces but since the surfaces are already trimmed I get the "no can do" message.

Anybody know another way to skin this cat.

For some vital info needed to answer this question.

surfaces are the top of a part and sweep from left to right in a top view, and in a front view from x0 y0 the part has z minus bow x20 y-.75 at mid point and back up to x40 y0 at the end

[Thad]

You can try the various extension types (tangential, etc) in Gap Settings toward the bottom of the window. This doesn't work for all toolpaths and it only affects the gap (area between passes).

 

You can also try Create-Surface-Remove Boundary (or somesuch) on single edges of a trimmed surface. Then you can extend them.

 

The new fence surface comes out nice at times.

 

Thad

[Guest]

And if push comes to shove you can always untrim your surfaces and extend them where you need.

 

Gee Thad, you were all over that one

[terry5357]

Hey Thad

Thanks man, I haven't been in MCX long enough to know all the neat stuff it does as opposed to 9. I'm on my way out of here for the day and know I will have some good responses when I come in tomorrow morning. Thanks again for the quick response........I can tell you how much I ove this new version. It really will do some cool sh*t than none of the older versions wouldn't even dream of doing........Hated it when I started using it, and now love it more and more every day. have MR2 also....... talke to you tomorrow

Terry

[terry5357]

Man what would I ever do without my other 300,000 brains...........thanks again guys

[Guest]

quote:

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without my other 300,000 brains

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Actually, at the moment it's 15,730

[Thad]

quote:

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talke to you tomorrow

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Later, gator.

 

Thad

[Don S at Barefoot CNC South]

Terry

Take a few minutes and check out the vidieo on MC web site under products X2 it gets even better.

[Robert Bernobic from CNC Software]

Hi, if you use the new HST toolpaths there's another option you can try -- there's an option to add an extra offset to your tool containment boundary, this might work for you too. You can use it to offset the tool from the boundary in either direction, either cutting a bit past it, or not quite all the way to it.

 

HTH,

Robert

[Sparks]

You could add a fence surface parallel to your machining surface as an extention.