Two different cut depths in same pocket toolpath

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Stingray1969
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Two different cut depths in same pocket toolpath

Post by Stingray1969 »

Would you guys take a look and help figure out why my tool paths are so ugly? Same pocket, and the "Larger Area Clearance Tool" tool path is a different height than the smaller tool in the preview.
I've attached a couple of screenshots. Looks like I'll have to get a dropbox account as the .crv3d file is 13 MB.
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badge.jpg
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martin54
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Re: Two different cut depths in same pocket toolpath

Post by martin54 »

Have you previewed both toolpaths? Using a larger area clearance tool will generate 2 toolpaths, you would need to preview them both to see what the finish was like :lol:

SteveNelson46
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Re: Two different cut depths in same pocket toolpath

Post by SteveNelson46 »

I see from your screen shot that your "Pocket Allowance" is set to 0. Try setting it a little higher so the roughing pass will not cut so deep.
Steve

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highpockets
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Re: Two different cut depths in same pocket toolpath

Post by highpockets »

Pocket Allowance has nothing to do with cut depth...
John
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Adrian
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Re: Two different cut depths in same pocket toolpath

Post by Adrian »

Shouldn't need to adjust that though. They should be exactly the same in the preview. Looking at the screenshot there is something odd going as the cut doesn't look at all right near the bottom of the shot. Really need to see the file to look at the vectors and tool setup.

I've tried duplicating it from the information in the screenshots but it comes out perfectly as it should.

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highpockets
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Re: Two different cut depths in same pocket toolpath

Post by highpockets »

LOL!!! Adrian, I just tried duplicating the problem and couldn't either.

If there is no copyright material in you project would you mind posting the crv3d file including toolpaths.
John
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SteveNelson46
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Re: Two different cut depths in same pocket toolpath

Post by SteveNelson46 »

highpockets wrote:Pocket Allowance has nothing to do with cut depth...
I know that it insets the perimeter so the roughing bit doesn't cut into the edges but I thought it also allowed a little more "skin" for the finish pass.

EDIT: I think I was toolpath confused.
Steve

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highpockets
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Re: Two different cut depths in same pocket toolpath

Post by highpockets »

SteveNelson46 wrote:
highpockets wrote:Pocket Allowance has nothing to do with cut depth...
I know that it insets the perimeter so the roughing bit doesn't cut into the edges but I thought it also allowed a little more "skin" for the finish pass.

EDIT: I think I was toolpath confused.
Steve, I think you're thinking about Roughing/Finishing toolpaths. The Machining Allowance on the Roughing toolpath does leave an allowance on the machining depth.
John
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adze_cnc
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Re: Two different cut depths in same pocket toolpath

Post by adze_cnc »

Does the "Project toolpath to 3D model" setting being checked have something to do with this?

Stingray1969
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Re: Two different cut depths in same pocket toolpath

Post by Stingray1969 »

Yes it is a 3d file. Here is a picture of the full model.

Here is the dropbox link:

https://www.dropbox.com/s/slyskr2seraxj ... crv3d?dl=0
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highpockets
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Re: Two different cut depths in same pocket toolpath

Post by highpockets »

OK, I see the problem. You're trying to project vectors onto a curved component. The problem is a .125" BN can't cut as deep as the 1mm BN when project onto the curved surface.

Either abandon the .125" BN and just use the 1mm or model all the vectors into components and run the whole job using the 3D Roughing/Finishing toolpaths.

The banner is cutting odd because the boundary vector around the banner is not the same size as the banner component.

Hope this helps.
John
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Stingray1969
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Re: Two different cut depths in same pocket toolpath

Post by Stingray1969 »

Thanks much, i was having a real tough time figuring this one out. I really appreciate everyone taking time out to have a look at this.
Thanks highpockets now that you've said it, that makes perfect sense...
Thanks again,
Scott

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