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Best way to prepare part for machining?

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01-29-2015
01:03 PM
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I've designed the attached part that I plan to maching using a Tormach CNC miller. I'm having trouble setting up a clearining strategy that doesn't collide with the stock. The stock is a 4"x4"x2.25" aluminum block. I plan to do a 2.5D milling process. I'd like to clear the front side of the piece and then do a 3D contour around the back and sides. However in my setup, both adaptive and pocket clearing collide into the stock. I'm designing for use of a 3/32" diameter, 1.5" length ball end mill. Is the tool size the problem?