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Problem Poor Surface finish on interior corners

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Not really a mastercam problem but thought I'd ask here since I use mastercam to program.

How do you deal with vibration marks on the interior corners of a pocket where you're hanging a small tool out.

What strategies have worked for you?

I'm currently working on a part with 1.75" deep pockets with internal corner radius' of .125"

For shallow pockets, using a smaller size end mill works well, but when going 7xD I need to use the beefiest tool available and going down to a 3/16 tool doesn't see feasible....but maybe it is...I haven't tried.

I guess this isn't limited to inside corners but that's where vibration is most prevalent.

Thanks for the input.

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