Two of the dot umbriferous beg the 3rd umbriferous

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  • source:SCHOCH CNC Machining
Analysis: Because order two umbriferous report the X that nods A, Y, Z 3 coordinate, because this nods the dimensional position of A to already decided, use the umbriferous law of the dot, the profile that can seek A giving a point is umbriferous A 〞 . Because order two umbriferous report X of this bits, Y, Z 3 coordinate, dimensional position of this bits is accordingly firm already, use the umbriferous law of the dot, OK the random of root foothold two umbriferous beg give the 3rd umbriferous. Exemple 1: The front of known drop A is umbriferous A ′ and level are umbriferous A, the profile that seeks bit of A is umbriferous A 〞 . 1.

The can adopt them relative to the position coordinate difference between 2 o'clock comes to the relative position 2 o'clock affirmatory. From graph midpoint A and dot B 3 umbriferous and OK see, of the dot umbriferous the coordinate that can reflect a drop already, also can mirror a coordinate 2 o'clock to differ, z of Y of △ X, △ , △ is A, B the opposite coordinate 2 o'clock. The basis is opposite when coordinate scale projection drawing, it is reference point in order to nod A suppose, if nod the Zun Fang that B is nodding A (square of edge X axis to) , ahead (square of edge Y axis to) with upper part (square of edge Z axis to) , criterion Y of its △ X, △ and △ Z all are, it is conversely negative. Exemple 2: 3 of known drop A umbriferous, know B another a little bit to be opposite again the X=-20 of opposite coordinate △ of bit of A, △ Y=10, △ Z=15, 3 of the B that seek a site umbriferous. Analysis: Dot A is reference point, according to Z of Y of the X of opposite coordinate △ 2 o'clock, △ , △ losing a value, but the right, the front that differentiate dot B is lighting A and upper part. Do not draw the projection drawing of umbriferous axis, call the projection drawing that do not have an axis. The projection drawing that do not have an axis is the ground comes relative to coordinate of scale, its projection drawing still accords with the umbriferous rule of the dot. Must point out: In the projection drawing that do not have an axis, although umbriferous axis is not drawn elliptically, but each are umbriferous the umbriferous relation between still exists. 2.

Dot of double image of double image dot is to point to be in space of same and projectile on-line at 2 o'clock (namely they have two identical coordinate) , they are in this umbriferous coincide on umbriferous face a bit. The visibility that double image nods should be judged according to that not identical coordinate, among them coordinate value is great person to see, small person for sightless, what provide sightless point is umbriferous add bracket to express. CNC Milling CNC Machining