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ellipse in motion program
#2
NORMAL defines the direction vector that points in the direction perpendicular to the plane of the circle. For example, if you point the nomal vector in the Z direction and you do a CIRCLE move in the X-Y plane you get a true circle. Now, if you point the direction vector in a direction that is an angle to the X-Y plane and then do a CIRCLE move in the X-Y plane, PMAC computes the CIRCLE in X-Y-Z space, but only makes the move in the X-Y plane, hence you get an ellipse. Think of it like the X-Y plane is cutting a cylinder whose axis is parallel to the NORMAL vector. If you play with this a bit you will understand how to do the algebra to get what you want.
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Messages In This Thread
ellipse in motion program - dholden - 12-12-2012, 09:33 PM
RE: ellipse in motion program - tahoe brian - 12-13-2012, 10:24 AM
RE: ellipse in motion program - JayL - 12-14-2012, 10:25 AM
RE: ellipse in motion program - lovu - 08-08-2017, 05:12 PM
RE: ellipse in motion program - Gregs - 08-09-2017, 10:36 AM
RE: ellipse in motion program - lovu - 08-09-2017, 05:48 PM
RE: ellipse in motion program - AAnikstein - 08-10-2017, 09:03 AM
RE: ellipse in motion program - lovu - 08-11-2017, 02:17 AM
RE: ellipse in motion program - JayL - 08-11-2017, 10:14 AM
RE: ellipse in motion program - JayL - 08-14-2017, 01:15 PM
RE: ellipse in motion program - JayL - 08-14-2017, 04:33 PM
RE: ellipse in motion program - JayL - 08-15-2017, 10:30 AM

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