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Old Sep 28, 2012, 05:12 PM
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Hi Doug. My CAM software (MADCAM) generates a toolpath that makes acute angle exterior corners like that come out perfectly sharp (or with whatever radius you've modeled in your CAD program). I thought they would be difficult, but they're not - as long as you have reasonably good CAM and your controllers and machine are working properly, you don't have to do anything funny to get sharp corners besides just compensating for the cutter radius (which your CAM software, if you're using it, does for you). If you're creating G-Code by hand it's going to be a bit trickier but you just essentially cut along one of the two lines that intersect to the corner/edge you want and go past the corner point (outside the piece you're cutting) until the cutter is clear of the corner location, and then start cutting the second surface. Hope that makes sense, it's possible I'm misunderstanding. Good luck.

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