Matt, What part of modeling a thread are you having trouble with? If you try cutting a thread one thing you must keep in mind is that the "cutting tool" profile cannot intersect itself to if the pitch is 1.5mm and your 60deg cutting profile is 1.5mm the corners will intersect as it follows the spiral path. (The same error occurs in MDT, IV, and that other solidworking program.) One solution is avoid the intersection "collision" is to subtract a very small amount, say .001mm from the width of the cutting tool. If this is the problem you are referring to it also has implications for other situations. For example using the place hole features to place radial holes at an angle. If the "drill" is set to go deep enough so that the "drills" would "collide" in simultaneously placing the features, the feature will fail. J.D.
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